Accidentally replaced admin account

i have an firewire drive that is the hardrive (now in a fancy enclosure) from my old ibook (that died). i recently bought a g4 off a friend and decided that i should take a wack at replacing my address book...that's where it all went terribly wrong. i'd been using the computer for a couple of weeks before i did the import, so it was exactly where i wanted it to be settings wise.
here's what happened;
-i plugged my firewire drive in
-held down the option key
-booted the computer off my old drive
-went into the address book
-dragged all the contacts into a file on the desktops hard drive
-rebooted my computer
-dragged the contacts into my new address book...
right after i dragged the contacts in, the computer asked me 'there is one record that needs updating, would you like to do so' i said yes. what ended up happening was that i replaced the old admin contact (that seemed to contain all the settings that i'd toying with for the last two weeks), with the one from my old hard drive. thus i'm now starting from scratch...is there any way to undo what i did?
G4 Mac OS X (10.3.9)

Go to start -->run-->adminutility
http://cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080557ba5.shtml

Similar Messages

How do I replace Admin account with transferred account?

Just setup my new Imac. Used migration assistant to transfer via firewire my existing account from my Macbook. The transferred account shows up on my new Imac in accounts under "other accounts".
HOW do I replace my Main User Account with my newly transferred Macbook account as I don't want both accounts; just the one I transferred to serve as the main account? The option to delete the main account in system preferences > accounts is greyed out.
Thx.

For new Macs, I usually try to quit the setup assistant as soon as it will let me.
I define an initial account that has no personal information, and a user called "Master", or "Administrator", or something similar.
This account is then the bare bones original account as set up by OSX, and I never change it.
In this way, if an account becomes corrupt, I can always go back to this clean, unaltered account, and delete old (or add new) administrative accounts as necessary.
This would work for your condition as well. Just keep the new imported account as your main user, and the original account setup when the machine was new becomes your "backup" Master.

How to replace all prior admin account info and files

I know this is a common question but I'm bogging down reading the various threads and would appreciate a link or answer.
I replaced my Powerbook hard drive, clean installed (no archive) and updated Tiger, transfered my home folder and apps only via Carbon Copy Cloner from a back up drive. I noticed that I had typo'ed my ne Admin long and short name. I went to Sys Prefs/Accts and created a new account, logged into that one, gave it admin access, re-logged to the new acct and deleted the old one.
My P'Book still shows the old name on start up. How do rename and certain that any other existing system level or other files under the old acct are gone. I'm also getting keychain password box and the P'Book immediately wakes up when trying to Sleep from Apple menu or closing the lid.-checked energy saver settings and reset Power Manager... I'll look at those after I'm sure there's nothing lingering from the old admin account. No other problems noted.
I'd greatly appreciate a thread or explanation.
Thank you.

Yes, the old account is gone in Sys Prefs/Accts. When I start up the machine, the old name still shows above the log in window, while the new account name is the only log in option.
I've also got a keychain mail password box popping up so I want to be sure that everything is gone from the old account before I resolve the keychain. Some threads here give me the impression there may be other files lingering from the original account set up from the boot disk, even though I deleted it from Sys Prefs/Accts.

I need to create a new admin account. But i lost the cd it came with and forgot my password. also can a cd be replaced

I need to create a new admin account. but i lost the cd that came with the macbook, and forgot my password. also can the cd be replaced.

You can purchase replacement discs from AppleCare:
Apple Store Customer Service at 1-800-676-2775 or visit online Help for more information.
To contact product and tech support visit online support site.
You can try the following to reset the password without the DVD:
How to change your username and/or password from the Terminal
1. Boot into single-user or verbose mode
2. At the prompt enter the following commands. Press RETURN after each:
fsck -fy
mount -uw /
launchctl load /System/Library/LaunchDaemons/com.apple.DirectoryServices.plist
dscl . -passwd /Users/username password
Replace username with the targeted user and password with the desired password.
reboot
This allows you to reset the password in single user mode without booting from the install media. The above tip is attributed to Satcomer.

PhotoBooth Replaces Managed Account Picture w/o Admin OK

Hi, the Photo Booth that comes with the OS is letting students replace the account photo where the account is managed. This is what I did.
1. Open Photo Booth and took a picture.
2. Clicked on the picture and then clicked on Account Picture.
3. It then popped up the screen where you need administrative rights to change the picture (always, only once, ok), so just click OK. And if everything holds, nothing is suppose to happen to the account picture, right? Wrong.
When I logged out of the managed account, the picture that was taken is now displayed for the account.
Since this is not good, at least security wise, I had remembered (way back in the old days) that there is a way in the terminal to prevent changes to the picture for the account. Does anyone know about this or of a fix? Because I would like for the students to still use this option to snap pictures for their presentations and such; but, I don't want to see a "questionable" picture pop up for the account.

I just noticed the same problem for us today! Same exact scenario....
I'm going to watch this thread for an answer
Thanks

I made a mess of my admin accounts need to consolodate please help :)

Hello so i've been having this issue with my main admin account... for about a year now there have been items stuck in my trash folder and safari crashes after a bit. i've taken my computer to apple store and they cannot fix they told me to reinstall OS with disk but when i try to do that it times out... out of frustration i created a new admin account and what do you know i do not have the same issues with the trash... so i copied all the mail folders, preferences and address books over but the passwords didnt follow... so i was only able to get mail on the accounts i could remember the passwords to... so i was using the other account and kind of going back and forth to the old account but now i'm having even more issues with the second account... my macbook pro is all kinds of screwy ...
i need to consolidate the mail i have on both admin accounts... because i have to go back to using the main admin account and i want to transfer all the mail i've been receiving on the other account for the past 2 months to the old account.
can someone please help?

Ok so i figured out what to do (through lots of research and headaches) just thought i'd share my solution... i needed to consolidate two admin applemail accounts with the same email accounts and i forgot all of my passwords...
# To back up Mail preferences (i only did this on my main admin account seeing as though the secondary had the same exact preferences). (i'd suggest also backing up addressbook info as well...)
1. Create a uniquely-named folder on your desktop (or other favorite location- like an external drive). For example, you might call it "Mail Prefs Backups May152005" (adding a date is a good idea).
2. Quit Mail if it's running.
3. In the Finder choose Home from the Go menu.
4. Open the Library folder.
5. Open the Preferences folder.
6. Copy the "com.apple.mail.plist" file to the folder you made in step 1 by Option-dragging the file. Don't remove the original file from its current location (this file contains your Mail accounts information).
7. Close the Preferences folder.
8. Open the Mail folder.
9. Copy the "MessageRules.plist" file to the folder you made in step 1 by Option-dragging the file (this file contains your Mail rules).
10. Copy the "SmartMailboxes.plist" file to the folder you made in step 1 by Option-dragging the file (you guessed it, this file contains Smart Mailboxes information).
11. Finally, copy the Signatures folder to the folder you made in step 1 by Option-dragging the folder. (Your custom signatures, if you use them, are stored here.)
#manually back up Mail messages (i first did a backup of the MAIN admin account on my external drive so that i made sure i didnt accidentally remove any files... then i manually went into each "inbox"/"outbox"/"drafts" of each account and added each email- emails here are only identified with a unique set of numbers and date/times in the info field- that was not in the MAIN admin account to the copy mail account located on my external drive -yes this was VERY tedious- also i had folders that i had to consolidate so i made sure i didnt miss those)
1. Quit Mail if it's open.
2. From the Finder's Go menu, choose Home.
3. Open the Library folder.
4. Copy the folder "Mail" to your backup location, such as a different volume or burnable disc. Important: Do not remove the Mail folder from ~/Library. If you're backing up to the same volume, hold the Option key as you drag the folder to make a copy instead of moving it (a "+" cursor appears).
once i got all this i took all the files i copied/consolidated on my external drive and replaced all the original files in the new Admin account i created (I have to create a new MAIN admin account because the original main admin account is corrupt the second one also has some of the same issues because i was rushing through copying all of the plist/library files over without inspecting each...)
NEXT
* i forgot all the passwords to my email accounts...
Keychains
Keychains are located in your ~/Library/Keychains/ folder. To get to this file in the Finder, choose Home from the Go menu. Open the Library folder, then open the Keychains folder.
i copied that file and backed it up on my external... also i opened it up and found all the passwords i forgot
so this problem for me is solved...
PS the KeyChain is AWESOME! i use firefox and none of those passwords are saved to the keychain but there is an addon password extractor u can export usernames and passwords from firefox with this addon and ad them to your keychain...

Photoshop launches in Admin account but not in User account??

My 2007 Mac Pro is working fine. Just installed 10.6.7 on freshly wiped HD in Bay #2. Used the migration feature to bring over everything from drive in Bay #1 (which runs 10.5.8). After that: Photoshop CS5 will not launch (on either drive) under the regular user account. Throws 2 messages as follows: "Cannot find scratch disk because disk is unavailable." Then: "Cannot initialize because disk is unavailable."
But - just logged in on my Admin account on the Snow Leopard drive. I then tried (for the first time ever, I think) to launch PS CS5 just to see what would happen. The app launched normally!
This after:
1. using Adobe uninstaller to remove "original" install of PS CS5 from the Snow Leopard drive. Then reinstalling. (first reinstall of THREE). This did not work to make the app launch, still got above messages.
2. Ran permission repairs (I know - you don't have ta tell me.)
3. Ran DiskWarrior - applied new directory to both Leopard and Snow Leopard drives.
4. I then called Adobe support. Let the agent connect to my desktop from where he did another un-install & re-install using downloaded Adobe utility app. (A guy in India ran my Mac Pro in Michigan for 30 minutes while I sat there, entering Admin password when needed for the operations. Amazing.) He also performed Adobe diagnostics. All without success (on the User account).
After that, he gave up and arranged for a higher level agent to call me tomorrow (Wed. 4/13).
5. Adding: during the above Adobe effort, it came to me that I have too many versions of Photoshop. (I had CS, CS3, CS 4 and CS 5.) So - I systematically removed all versions except the original CS from both the Leopard and Snow Leopard drives. I used AppDelete for this removal, hoping to get all pref files, etc. I even deleted an old version of Acrobat - just because I no longer need it. Then I ran DiskWarrior again and used PreferentialTreatment to check for bad prefs: then again installed CS 5 again - on both drives. (Still working in my normal User account.)
6. Adding: all along, I had no trouble launching and using Photoshop Elements 8 on either drive. I had originally set the PSE scratch disk to my RAID storage drives (Bay #3 & #4). So I was sure by then that I had forgotten to apply the same designation for scratch disk of Photoshop CS5. This was the only variable or possibility I knew of at the time. Guessing: I had set CS 5 to use the drive I wiped clean for Snow Leopard and that's why it came up with: "drive not available."
Repeating: it was not until I logged into my Admin account on the Snow Leopard drive and found I could launch Photoshop from that account that I decided to check in here with my question:
Q. What is the remedy for having one account which won't allow launch for some (in this case, just ONE) apps?
Sorry to be long-winded: this was a major, day-long effort and I want to provide a complete picture of what was done to trouble shoot. Thanks in advance for any help.

1. Standard procedure is to do all but a few operations from Standard User accounts: which I have always done. All software installations have been from my original Standard User account.
Actually, most people use their admin accounts for things like installs, and some apps may not be installable from a standard account or may not function properly there, unless they can authenticate to admin privileges to install things in places standard users don't have access.
several complete uninstalls followed by an equal number of reinstalls FROM the original CS 5 install disk made no difference: when in the Standard User account. CS 5 DOES work under the Admin account on the new Snow Leopard installation (on Bootable Drive #2).
That matches with my experiences with Photoshop Elements... it only works if you've got admin privileges, unless you figure out what items are inaccessible from a standard user account and change their permissions.
I'm sure most experienced users would say that sticking with a Regular User account for daily operations is best.
In reality, that's not as prevalent as it probably should be. In part, that may be because of other software that similarly doesn't run on a standard account. In addition, running on an admin account really isn't as much of a risk as it might seem. I finally gave up years ago on using a standard account, and have never had a problem as a result of using an admin account for day-to-day operations. The stuff you can least afford to lose - ie, your documents - you have full access rights to in a standard account anyway, making your data no safer. It's easier to bork the system in an admin account, but the system is easily replaced.
I have seen (here and elsewhere) that creating a new Reg User account is the remedy when something suddenly won't work
That is true, but it's not a magic wand. In this case, though, I don't think that's likely to help. You're welcome to try it, but I highly recommend doing so in a non-destructive way, so that you can easily switch back to your regular account if it doesn't work.

I recently set up multiple accounts and when I was trying to figure out how to share files I messed up something in my documents. Everytime I open a doc from the ADMIN account, a box pops up that says "The file is not in the correct format" how to fix?

I recently set up multiple accounts on my imac, When I was trying to figure out how to share the documents I must have done something wrong. When logged into the Admin account, I open up any document and I get a message box that says, "The Document could not be opened. The file isn't in the correct format. The file might be corrupted, truncated, or in an unexpected format." What did I do and how do I fix it?

Without knowing what you did it is impossible to give advice on how to correct it.
If these were files you copied over from some other system then just Re-Copy them replacing the ones that are corrupted.
Other then that I suggest you Wipe the drive and start over with a clean reinstall of the OS and programs. Then if you want to share files to All Accounts place those files in a folder in the ROOT of the drive.

Bricked Lenovo Yoga 3 Pro-1370 due to broken microsoft ecosystem / unrecoverable admin account

Hi. So now I am here. HELLO EVERYONE! All you friendly and curious troubleshooters. I am frustrated and lost. I will not give you the 14 step Microsoft issue. But I guarantee this will be one of the more bizarre or interesting problems you have read in a bit. so tl;dr - my yoga 3 is bricked because the user account switched the administrator to an unrecoverable & disused / non-used outlook.com email account b/c of the MS App store. Their tech has not helped, no recovery has worked at all. I just want to factory reset the hardware at this point, but the software "glitch" needs me to log in to my admin account to factory reset, which is something I can't do. Way too long of info story: a) on my lenovo tablet, I had my personal login to sign into my admin profile. I did not use a MS Outlook account at all. In Feb, I signed up w/ a "dummy" outlook.com account for the app store, but never DL anything, and didn't think to realize this account locked me into an ecosystem... I just thought it was a temp email to register, and didn't keep any details. The 1st time it removed my local user account profile from admin, and replaced it with the outlook.com account. I immediately switched it back, that time. b) 2 weeks ago, I wanted to DL The Economist app. We hadn't used any apps, & again it made me sign in to Microsoft. I signed into my account and DL the app. I believe it signed in with a remembered password, as I don't remember it. It could be one of 15. c) At this point, microsoft's account removed my personal local lenovo user account, and replaced it with the microsoft outlook.com sign in d) Now, when I try to log in to my tablet, it says "You can't sign into your PC right now. Go to account.live.com to fix the problem, or try the last password you used on this PC". No previous passwords work. This is probably because I tried to sign in a bunch of times under my personal local user account, before realizing it had switched the admin to the outlook.com account. e) I go to account.live.com, and it redirects to login.live.com. When I try to sign in with my outlook.com account, it says "You've tried to sign in too many times with an incorrect email address or password." f) At this point, a captcha comes up, and no matter how many times I solve it correctly, it won't let me sign in. I did get to a point where I see a different type of screen that says my account is locked. g) When I try any form of account recovery, and attempt to have an email or password sent to my secondary recovery email, those emails never arrive in my inbox. h) when I attempt to have a code sent to my phone, I never receive the code. i) the microsoft support number has a phone tree that leads me to a place that tells me to go online to get support. j) When I try to contact customer support, it leads me back to the login in page. So I made *another* MS account for support, and have spent 2 weeks getting copy pasta support about "try password reset", "try text code reset", "try account recovery". I never get the password reset to my recovery email, I never get the text, and the account recovery doesn't work because I never used the email, and don't have enough information like email subject lines, or folders, for them to know the account is mine.... even though it was a throwaway email to use for the ecosystem, and not to use for anything else. I am still 10 tech support messages in with their support team, and they still haven't realized the problem: I DO NOT CARE ABOUT RECOVERING MY OUTLOOK EMAIL, but I do if that's the only way to gain access to my hardware's admin account. I have tried everything, and it doesn't work. I do not care anymore. I just want to factory reset the **bleep** thing, but it needs my password for the admin account to do it. Ain't that the darndest thing? I mean.. think about it! Microsoft's broken ecosystem of account recovery means their software has intrinisically bricked my Yoga 3 and made it unusable. I can still use a sub-account, but it acts all wonky because it wants me to download apps using an outlook account and when I try to sign a new one in, it leads to broken links, etc. If Microsoft's ecosystem doesn't allow for account recovery in any way, how do I take control of my hardware again? I feel frustrated and alone. This was a HUGE purchase for us, and I never thought a software glitch or problem with the ecosystem would brick hardware in this manner. NB: I know I have to take some accountability for not remembering the password, or realizing the ecosystem being a bit rigid and fierce, especially when trying to find back end understanding or support in recovery.... I had no idea, and that's on me. I also know it's not "bricked" IE unusable, per se... but not being able to log in to the admin account, nor make changes, updates, or get into the app store... it's pretty brickish. Thanks for listening. Any help is appreciated.

Can you get into the Advanced Startup Options page in any way?
http://pcsupport.about.com/od/windows-8/a/open-advanced-startup-options-windows-8.htm

Webcasts won't play in Admin account but OK in others

An odd one this. Tried to view the latest Keynote 05-09-07 but using my main (admin) account I get the 'bad address' error message.
However, if I switch users to one of my other accounts on the same computer the webcast plays first time with no problems. What's going on?
I've done a 'repair permissions' restarted, etc, changed the transport settings to HTTP/80 but has had no effect whatsoever. Any ideas?

The battery is dead, permanantly pretty much.
I had this happen to an old nano, 2nd gen or 3rd i forgot which it was.
Anyway i went in a lake with it, after that it would no longer work on the battery, but would with external power.
I spent a good while looking for a solution but couldn't find a fix or any suggestions other than replacing the ipod battery, or the ipod itself.
I did keep it though and just kept it on a ipod player speaker device though. Maybe now theres a trick to fix it or something but i highly doubt it.

TDM vi's work in Admin account, but not Limited user

I have an app that I wrote using the TDM VIs that works perfectly in the development environment and as an executable in an Admin account in WindowsXP. I am trying to deploy the app for use in a limited user account, and I am getting an error about an unrecognized file type. Is there a way to enable this functionality?
The VI is used to create a file map of a custom TDM file that was created using the TDM header writer VIs. I've included the VI and the executable in the archive, as well as a sample file to read (select the .tdm, not the .bin in the path control when running the program).
The actual error text is:
Error -2564 occurred at Open Storage
Possible reason(s):
LabVIEW: The software installed on this computer does not support the file format you requested. The Storage VIs access files through plug-in libraries LabVIEW and DIAdem install. Visit ni.com to download the library you need.
Thanks,
Chris
Attachments:
cTDM Map Test.zip ‏868 KB

The TDMS VIs probably are better, but I started this project before they were available, and I spent a considerable amount of time with the TDM Header Writer VIs to create my file format. I don't use the TDM VIs to write the files; I do that all with my own binary format that is fast and efficient. I also stripped out all the extraneous gunk that the TDM files like to put in, and customized the files with my own properties. Unfortunately, I am disappointed with the time necessary to read and write properties, but it's too late now to replace the whole system with a database backend.
Anyway, I'm hopeful that there is a solution to this problem. I doublechecked all the options in the installer and app build specifications, and I didn't see the checkbox for Storage VI Support. I have a fuzzy memory of this; is it possible that it existed in a previous version of the builder?
Chris

10.5.7 Hosed my admin account! Help.

Hi all-
Having installed 10.5.7, I can no longer launch many programs in my admin account. This is not the case in any of my three limited user accounts. In the admin account, some dock icons are replaced by the generic "apps" icon, and I cannot launch finder, safari, and numbers to name a few. I cannot even double click on a disk image. When I try to launch an app like safari, the warning I get is: "You cannot open the application "(null)" because it may be damaged or incomplete." It sounds like the install went bad - but just on this admin account. So, I logged into a limited user account and downloaded the 10.5.7 combo update and reinstalled. No luck. Any ideas?
I have a very recent time machine backup, but it was completed while the system was at 10.5.6. If I restore from a TM backup, is this going to cause a problem because the system is now at 10.5.7? Thanks in advance for your the help.

Hi,
Lot's of people appear to be having problems with this new update (thus I'm holding off with installing it...)
The easiest way to rollback Mac OS X is to boot from the Leopard install DVD
when you reach to screen to specify the destination for the installation choose the boot volume (the one with Mac OS X on it).
Click the "options" button at the bottom left; here choose "Archive and Install", ensuring to preserve User's and Network settings (it is automatically enabled by default)
Click OK to install the new system.
After the installation is complete, look for the folder called Previous System on your hard disk; this will contain the archived version of Leopard. Open it up to check that there are no files in there that you need, after which it’s safe to delete it (it’s probably better to leave the Previous System folder in place for a few days, just in case).
Incidentally, you might need to reinstall some third-party applications after an Archive and Install reinstallation, but it’s simpler – and usually quicker - than a complete reformat.
Hope that helps you.
Kind Regards,
Peter.

Is it better to set the admin account to other than myself on a new computer for security purposes?

Hi all
On a new computer is it better to set the admin account to other than myself for security purposes? I am sure that I read some years ago that this was the best route to go down. What I am suggesting is that I will still administer the account but not as myself the user in my own name and also will it have any ramifications further down the line.
Will be using a new Macbook Pro running Lion (when it arrives)
With thanks in advance for any help and advice on this issue
Best regards
Dingoh

when you get a new mac and set up an account, that account is designated as the admin account automatically. Creating a second user account without admin privileges is fine to do, if you are afraid that you might accidentally do something harmful that requires admin access. Make sure it is a second user account and not a guest account, as with a guest account, everything during a session under a guest account gets deleted after the session ends.

I just purchased a one year old iMac. How do I create a brand new admin account?

I just purchased a one year old iMac. How do I create a brand new admin account?

The first thing to do with a second-hand computer is to erase the internal drive and install a clean copy of OS X. You—not the original owner—must do that. How you do it depends on the model, and on whether you already own another Mac. If you're not sure of the model, enter the serial number on this page. Then find the model on this page to see what OS version was originally installed.
It's unsafe, and may be unlawful, to use a computer with software installed by a previous owner.
1a. If you don't own another Mac
If the machine shipped with OS X 10.4 or 10.5, you need a boxed and shrink-wrapped retail Snow Leopard (OS X 10.6) installation disc from the Apple Store or a reputable reseller—not from eBay or anything of the kind. If the machine is very old and has less than 1 GB of memory, you'll need to add more in order to install 10.6. Preferably, install as much memory as it can take, according to the technical specifications.
If the machine shipped with OS X 10.6, you need the installation media that came with it: gray installation discs, or a USB flash drive for a MacBook Air. You should have received those media from the original owner, but if you didn't, order replacements from Apple. A retail disc, or the gray discs from another model, will not work.
To start up from an optical disc or a flash drive, insert it, then restart the computer and hold down the C key at the startup chime. Release the key when you see the gray Apple logo on the screen.
If the machine shipped with OS X 10.7 or later, you don't need media. It should start up in Internet Recovery mode when you hold down the key combination option-command-R at the startup chime. Release the keys when you see a spinning globe.
Some models shipped with OS X 10.6 and received a firmware update after 10.7 was released, enabling them to use Internet Recovery. If you have one of those models, you may not be able to reinstall 10.6 even from the original discs, and Internet Recovery may not work either without the original owner's Apple ID. In that case, contact Apple Support, or take the machine to an Apple Store or another authorized service provider to have the OS installed.
1b. If you do own another Mac
If you already own another Mac that was upgraded in the App Store to the version of OS X that you want to install, and if the new Mac is compatible with it, then you can install it. Use Recovery Disk Assistant to prepare a USB device, then start up the new Mac from it by holding down the C key at the startup chime. Alternatively, if you have a Time Machine backup of OS X 10.7.3 or later on an external hard drive (not a Time Capsule or other network device), you can start from that by holding down the option key and selecting it from the row of icons that appears. Note that if your other Mac was never upgraded in the App Store, you can't use this method.
2. Partition and install OS X
If you see a lock screen when trying to start up from installation media or in Recovery mode, then a firmware password was set by the previous owner, or the machine was remotely locked via iCloud. You'll either have to contact the owner or take the machine to an Apple Store or another service provider to be unlocked. You may be asked for proof of ownership.
Launch Disk Utility and select the icon of the internal drive—not any of the volume icons nested beneath it. In the Partition tab, select the default options: a GUID partition table with one data volume in Mac OS Extended (Journaled) format. This operation will permanently remove all existing data on the drive.
After partitioning, quit Disk Utility and run the OS X Installer. If you're installing a version of OS X acquired from the App Store, you will need the Apple ID and password that you used. When the installation is done, the system will automatically restart into the Setup Assistant, which will prompt you to transfer the data from another Mac, its backups, or from a Windows computer. If you have any data to transfer, this is usually the best time to do it.
Then run Software Update and install all available system updates from Apple. To upgrade to a major version of OS X newer than 10.6, get it from the Mac App Store. Note that you can't keep an upgraded version that was installed by the original owner. He or she can't legally transfer it to you, and without the Apple ID you won't be able to update it in Software Update or reinstall, if that becomes necessary. The same goes for any App Store products that the previous owner installed—you have to repurchase them.
3. Other issues
If the original owner "accepted" the bundled iLife applications (iPhoto, iMovie, and Garage Band) in the App Store so that he or she could update them, then they're irrevocably linked to that Apple ID and you won't be able to download them without buying them. Reportedly, Mac App Store Customer Service has sometimes issued redemption codes for these apps to second owners who asked.
If the previous owner didn't deauthorize the computer in the iTunes Store under his Apple ID, you wont be able to authorize it immediately under your ID. In that case, you'll either have to wait up to 90 days or contact iTunes Support.
When trying to create a new iCloud account, you might get a failure message: "Account limit reached." Apple imposes a lifetime limit of three iCloud account setups per device. Erasing the device does not reset the limit. You can still use an iCloud account that was created on another device, but you won't be able to create a new one. Contact iCloud Support for more information. The setup limit doesn't apply to Apple ID accounts used for other services, such as the iTunes and Mac App Stores, or iMessage. You can create as many of those accounts as you like.

Encounter "500 Unexpected Error" when admin account access to ECP

Symptom：
In Exchange 2013, when using admin account to access ECP, you will get an error “500 Unexpected” as below. However, when using the same account to access OWA, everything is ok, and other normal accounts can access OWA also.
At the same time, if you check the event log, you will get the following error:
Current users: “yourdomain.com/User/admin”Request for URL 'https://servername.yourdomain.com:444/ecp/default.aspx(https://servername/ecp/)' failed with the following error: System.Configuration.ConfigurationErrorsException: “
” (hexadecimal value 0x03)is an invalid character. Line 1, position 1 (C:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\ecp\quarantine\web.config line 1) ---> System.Xml.XmlException: “
” (hexadecimal value 0x03)is an invalid character. Line 1, position 1     System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)     System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
System.Xml.XmlTextReaderImpl.ParseDocumentContent()     System.Configuration.XmlUtil..ctor(Stream stream, String name, Boolean readToFirstElement, ConfigurationSchemaErrors schemaErrors)     System.Configuration.BaseConfigurationRecord.InitConfigFromFile()
Cause：
According to the error information, there are some invalid characters in the file (C:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\ecp\quarantine\web.config ).
In Exchange Mailbox server, when we open this file with notepad, we will find that all the content are garbled. That is the cause.
Solution:
1. Try to copy the following code to replace the contents of the file, and save it.
2. Restart mailbox server.
<?xml version="1.0"?>
<configuration>
<location path="Quarantine.slab">
    <system.web>
      <authorization>
        <allow roles="Get-QuarantineMessage@R:Organization"/>
        
        <deny users="*"/>
      </authorization>
    </system.web>
</location>
<location path="EditQuarantineAdvFilter.aspx">
    <system.web>
      <authorization>
        <allow roles="Get-QuarantineMessage@R:Organization"/>
        
        <deny users="*"/>
      </authorization>
    </system.web>
</location>
<location path="QuarantineDetails.aspx">
    <system.web>
      <authorization>
        <allow roles="Get-QuarantineMessage@R:Organization"/>
        
        <deny users="*"/>
      </authorization>
    </system.web>
</location>
<location path="QuarantineSDO.aspx">
    <system.web>
      <authorization>
        <allow roles="Get-QuarantineMessage@R:Organization"/>
        
        <deny users="*"/>
      </authorization>
    </system.web>
</location>
<location path="ReleaseQuarantine.aspx">
    <system.web>
      <authorization>
        <allow roles="Release-QuarantineMessage@R:Organization"/>
        
        <deny users="*"/>
      </authorization>
    </system.web>
</location>
</configuration>
Reference: https://social.technet.microsoft.com/Forums/zh-CN/74a108a8-21f3-4f5e-8fee-94942698797a/exchange-2013ecp500?forum=exchangeserverzhchs
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Hi,
According to your description, I understand that open a shared mailbox and modify the setting of Outlook Voice Access by OWA, then return an error “500 unexpected error”.
If I misunderstand your concern, please do not hesitate to let me know.
Basis on my testing, run Enable-UMMailbox to enable UM feature for shared mailbox, and enable shared mailbox account in AD. Then login OWA to double check the setting of Voice mail, everything is OK.
However, I get the same error as your mentioned when login another account in OWA and open shared mailbox to modify the setting of voice mail. Also, I get same error when doing this way to access another mailbox.
I find an similar thread about your question, it may be caused by the license of shared mailbox. For your reference:
http://community.office365.com/en-us/f/148/t/160652.aspx
Best Regards,
Allen Wang

Accidentally replaced admin account

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