How do I reset Mac 10x to sell

Before you sell or give away your computer, in addition to the steps listed in this support article, take these steps:
1. Run Apple Diagnostics or the Apple Hardware Test. The buyer will do this (or he should), and you don't want to be surprised by the results.
2. Reset the PRAM and the SMC, which might contain personal information.
3. If you set a firmware password, remove it by running Firmware Password Utility in Recovery mode.
4. If you activated FileVault in OS X 10.7 or later, turn it off.
5. If you use Boot Camp, the partition must be deleted.
6. If you created any other data partitions on the internal drive, remove them in Disk Utility.
7. If the machine has an internal hard drive, erase the one remaining data partition with the option to zero out data. An SSD doesn't need to be zeroed.
You can't legally or practically transfer any software downloaded from the Mac App Store to the new owner of the machine, even if it was free. That includes OS X, so if you upgraded to OS X 10.7 or later, you must reinstall an older OS, either from the installation media, if applicable, or by starting up in Internet Recovery mode (option-command-R at the startup chime.) If you installed from physical media, deliver those to the new owner.
If you're selling the machine, or donating it in working order, and it originally shipped with OS X 10.4 or 10.5, then you have the option of installing either from the discs that came with it or from a retail Snow Leopard disc (which you must then transfer to the buyer.) The buyer should understand that if he doesn't get the original discs from you, he won't get the bundled iLife applications or the Apple Hardware Test. Replacements for the original discs can be ordered from Apple.
The new owner will have to redownload any software that came from the App Store, including OS X upgrades, under his or her Apple ID. If you ever updated the bundled iLife applications (Garage Band, iMovie, and iPhoto) through the App Store, you can't transfer those either. The buyer will have to purchase them.
Remove the machine from your list of registered products. If it's still covered by an AppleCare Protection Plan, transfer the coverage to the new owner by following the instructions in the AppleCare Terms and Conditions (under the heading "Transfer of Plan.")

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How do i reset mac password if i do not have the old one?

we have a 2 year old mac book air. recently updated to the latest software and want to use the admin account and the keychain. we do not have the old password, so cannot set a new one to begin using these functions. any suggestions?

Mac OS X: Changing or resetting an account password - http://support.apple.com/kb/HT1274 - resetting password on regular and administrator accounts if you have the installer disc (OSX 10.1-10.6.8) or AppleID (OSX 10.7-10.8)

How do i reset mac book to original settings

I have an old mac book (white) and want to clean everything off of it and give it away, how do I do that?

     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. After the installer loads select your language and click on the Continue
         button. When the menu bar appears select Disk Utility from the Utilities menu.
         After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
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How do I reset Mac OS X Leopard to all defaults?

Ok, so I've got my iMac G4 finally and I was wondering if there was a way to reset the whole OS back to defaults, so that I could like go through setup assistant and set my name again and reset all my options from there. Also, if there is a way to use Migration Assistant through a LAN network with my "old" Mac (eMac G4 1.25GHz, it's actually better than it!) on the same network using LAN. They can both see each other in the side pane "Shared".
Thanks for your help!
-Gavin

Boot from the original installer discs that came with the computer. When you get to the point of selecting a destination drive click once on the drive then click on the Options button. Select the Erase and Install option then click on the OK button. Complete the installation. Upon completion the computer will restart into the Setup Assistant.
You can only use Migration Assistant over a Firewire connection. You can, however, simply transfer files from the old computer over your network. Here's a general listing of what you can transfer manually:
Folders You Can Move to Your new Mac
From the Home folder copy the contents of Documents, Movies, Music, Pictures, and Sites.
In your /Home/Library/ folder:
/Home/Library/Application Support/AddressBook (copy the whole folder)
/Home/Library/Application Support/iCal (copy the whole folder)
Also in /Home/Library/Application Support (copy whatever else you need including folders for any third-party applications)
/Home/Library/Keychains (copy the whole folder)
/Home/Library/Mail (copy the whole folder)
/Home/Library/Preferences/ (copy the whole folder)
/Home /Library/iTunes (copy the whole folder)
/Home /Library/Safari (copy the whole folder)
/Home /Library/Calendars (copy the whole folder)
If you want cookies:
/Home/Library/Cookies/Cookies.plist
/Home/Library/Application Support/WebFoundation/HTTPCookies.plist
For Entourage users:
Entourage is in /Home/Documents/Microsoft User Data
Also in /Home/Library/Preferences/Microsoft
For FireFox:
/Home/Library/Applications Support/FireFox
/Home/Library/Preferences/org.mozilla.firefox.plist
Credit goes Macjack for this information.

How do you reset .Mac sync files?

i have a couple home computers and my work computer all set up to use Sync. I just got a new computer at work so I decided to clean off the old one before turning it over to IT. in the process (obviously without thinking) i deleted bookmarks, address book entries etc. evidently, it immediately synced up with .Mac and now my other computers thing they need to "update" by deleting everything. is there an easy way to "force" the data from one of my home computers back up to .Mac?

You can update calendars and contacts [as well as the other .Mac Sync data types] from any computer [or other device with access to the data, such as a Palm handheld] in your synchronization pool, but you cannot update iCal calendars from the web—where they appear as read-only pages—or from .Mac, where they are not accessible.
You can update bookmarks and contacts from the .Mac website, but not other data types, including calendars.
You can do this if your are synchronizing using either .Mac Sync or MySync, but not iSync, which does not synchronize these data types between machines under Mac OS X 10.4 or later.

How can I reset the number authorized Macs in my account?

How can I reset the number authorized Macs in my account? Two old Macs that I no longer have are still authorized, which leaves me with three working macs at home.

Hello Joe
You will find your answer on this page. In summary you have to deauthorize each of the 2 Macs on the Mac thenself. If it's no longer possible, then you have to deauthorize all five Macs and then reauthorize each 3 remaining
http://support.apple.com/kb/HT1420
Bye

Trying to restore my Mac OS after a hard drive failure and my password is no longer recognized, however I can log in by double clicking on the Lion Icon? How can I reset my password

I am trying to restore my Mac OS after a hard drive failure and my password is no longer recognized, however I can log in by double clicking on the Lion Icon? How can I reset my password

First, make sure caps lock is not on.
Another reason why your password might not be recognized is that the keyboard layout (input source) has been switched without your realizing it. At the login screen, you can cycle through the available layouts by pressing the key combinationcommand-space or command-option-space. See this support article.
If the user account is associated with an Apple ID, and you know the Apple ID password, then maybe the Apple ID can be used to reset your user account password.
Otherwise*, boot into Recovery mode. When the OS X Utilities screen appears, select
Utilities ▹ Terminal
from the menu bar. In the window that opens, type this:
res
Press the tab key. The partial command you typed will automatically be completed to this:
resetpassword
Press return. A Reset Password window opens. Close the Terminal window to get it out of the way.
Select your boot volume ("Macintosh HD," unless you gave it a different name) if not already selected.
Select your username from the menu labeled Select the user account if not already selected.
Follow the prompts to reset the password. It's safest to choose a password that includes only the characters a-z, A-Z, and 0-9.
Select
 ▹ Restart
from the menu bar.
You should now be able to log in with the new password, but your Keychain will be reset (empty.) If you've forgotten the Keychain password (which is ordinarily the same as your login password), there's no way to recover it.
*Note: If you've activated FileVault, this procedure doesn't apply. Follow instead these instructions.

When i double click on Mac HD the view has changed and my user name is no longer listed on the left. How can I reset this

When i double click on Mac HD the view has changed and my user name is no longer listed on the left. How can I reset this?

Do a factory reset .. nothing will be deleted from your backups and you will be able to get access to them again.
The Factory Reset Gen1-4.
Unplug your TC. Hold in reset. and power the TC back on.. without releasing reset for about 10sec. When the status light flashes rapidly; release it.
Be Gentle! Feel the switch click on. It has a positive feel.. add no more pressure after that.
TC will reboot after a couple of minutes with default factory settings and will wipe out previous configurations.
No files are deleted on the hard disk.. No reset of the TC deletes files.. to do that you use erase from the airport utility.

Hard Drive crashed. I have a new hard drive but I cannot log into computer.How do I reset password to my i Mac?

Hard Drive crashed. I have a new hard drive but I cannot log into computer.How do I reset password to my iMac?

Forgot Your Account Password
For Snow Leopard and earlier
     Mac OS X 10.6- If you forget your administrator password
For Lion/Mountain Lion
    Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
     When the menubar appears select Terminal from the Utilities menu.
     Enter resetpassword at the prompt and press RETURN. Follow
     instructions in the dialog window that will appear.
     Or see Reset a Mac OS X 10.7 Lion Password and
     OS X Lion- Apple ID can be used to reset your user account password.

How do I reset my mac mini password

I have just returned from 4 weeks away and cannot log into my Mac Mini. The Op Sys OS X 10.8.4 Mid 2010
Might be complicated by that fact I am using a logitech windows keyboard, but then always have. I can access the Guest account and confirm that the keyboard keys do seem to operate correctly.
I have followed a number of routines I have found on this discussion group, ie rebooting using Command S and Command R but they dont work......just bring me to the opening login screen.
I have a time machine backup......but before I do a factory reset is there anything else I can do to reset the password.
Strangely I always save passwords in a dbase but the saved password is definitely not working and no 'reset passwprd' option is displayed after my 3 failed attempts.
Thanks richly for any help out of this mess. Oh one other thing....I have use of a friends macbook....could I use that macbook as the keyboard?

Have you looked:
Forgot Mac Password? How to Reset Your Mac Password (with or without CD)
Reset mac mini admin password: Apple Support Communities
OS X: Changing or resetting an account password
lost admin password: Apple Support Communities
Reset system password?: Apple Support Communities

How do i reset my mac completely? I have parental controls and cant seem to get to time machine cause i bought the computer with parental controls on it and they did not have the password. How do i completely reset my macbook pro?

how do i reset my mac completely? I have parental controls and cant seem to get to time machine cause i bought the computer with parental controls on it and they did not have the password. How do i completely reset my macbook pro?

If you have a rescue email address (which is not the same thing as an alternate email address) on your account then the steps on this page will give you a reset link on your account : http://support.apple.com/kb/HT6170
If you don't have a rescue email address (you won't be able to add one until you can answer your questions) then you will need to contact Support in your country to get the questions reset.
Contacting Apple about account security : http://support.apple.com/kb/HT5699
When they've been reset (and if you don't already have a rescue email address) you can then use the steps on this page to add a rescue email address for potential future use : http://support.apple.com/kb/HT5620
Or, if it's available in your country, you could change to 2-step verification : http://support.apple.com/kb/HT5570

My daughter forgot her Mac book pro password. How can I reset it

My daughter forgot her Mac book pro password. How can I reset it?

Put your install DVD into the optical drive (CD/DVD drive) and reboot. Be sure to either use the disc that came with your Mac, or, if you installed a later Mac OS X version from disc, use the newer disc. As soon as you hear the boot chime, hold down the "c" key on your keyboard (or the Option Key until the Install Disk shows up) until the apple shows up. That will force your MacBook to boot from the install DVD in the optical drive.
When it does start up, you'll see a panel asking you to choose your language. Choose your language and press the Return key on your keyboard once. It will then present you with an Installation window. Completely ignore this window and click on Utilities in the top menu and scroll down to Reset Password. After resetting the password use Startup Disk from the same menu to choose your hard drive for startup and restart.

My sound doesn't work, how do i reset my mac?

my sound doesn't work, how do i reset my mac?

Reset PRAM. Some sound settings are stored in P-ram.
Check System Preference > Sound > Inline Speakers is highlighted.

I forgot my Mac admin Password is, How can I reset it.

I forgot my Mac admin Password is, How can I reset it.
My Mac OSX version is 10.7.5

Resetting or changing an account password:
http://support.apple.com/kb/HT1274

How do i reset my mac ios 10.4.11 to factory settings

how do i reset my mac ios 10.4.11 to factory settings?

Tiger is not an iOS. iOS refers to the operating systems on iPads, iPhones, iPod Touch, and AppleTV if you look at its framework operating system alone. For Macintosh computers, all Apple operating systems since 2006 are some version of Mac OS X. 2001 to 2005 you may see a mixture of Mac OS 9.1 to Mac OS X 10.4 something. But do not refer to Tiger as an iOS, as that will only serve to confuse those trying to help you, as to what you want.

How do I reset Mac 10x to sell

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