How to reset user and password on MacBook Pro without CD

I recently bought a MacBook Pro, 15" with Lion on Ebay.
There are times when I am asked for a password. I have asked the person who I bpught it from, but he does not remember.
I do not have the original disk, so I need a method to reset the user and password.
Thanks

Thank you for your input.
I received an e-mail from a computer tech that thought the following would work; please let me know what you think:
ResetLion password with Single User mode
Anyone running Mac OS X Lion cantake advantage of this method:
Shut down your Mac and turn it back on while holding     down the Command and S keys at the same time until your see     a black screen with white text. This is known as Single User mode.
You can skip this step, but it’s recommended that you     don’t because it will check the consistency of your hard drive. At the     prompt, type fsck -fy and press Enter.
Once the disk check is complete and the prompt returns,     type mount -uw / and press Enter.
Type launchctl load     /System/Library/LaunchDaemons/com.apple.opendirectoryd.plist and press     Enter.
Type ls /Users and press Enter. All of the     usernames on the computer will be listed, which is helpful if you don’t     know or remember what these are.
Type dscl . passwd /Users/username password     while replacing username with one of the users displayed in     the previous step and replacing password with the new password     of your choice. Press Enter. You will likely get an error message about a     file or directory not being found – it’s safe to ignore this.
Type reboot and press Enter.

Similar Messages

How to reset user and password of macbook pro os x version 10.5.8

hi, I tried every option it does not worked for me. My machine is mac os x version 10.5.8 when I restart and press command s or Command R it goes to old log in page when I type name and password it does not work. when I type, all the keys type number and symbols only. and power on buttom does not response when f12 key pressed power on.
Battery condition is full, all hardware working, fan is working.
how to fix this issues

Back up your data, click here, and read the entire page. Mac OS X 10.7 and newer don't support PowerPC software such as Microsoft Office 2004.
(106264)

How to pass user and password in workspace when open a bqy

hello,
how to pass user and password of workspace when refresh a bqy for a query in DB2.
I don't know where to insert the properties in order to use user and password of workspace,
I want to use user of login of workspace,
I don't want to make to appear the mask of login newly when the user refresh the query.
I don't want to set a default user and password
thanks
massimo

Dear Friend,
What you mean?
1. Do you mean how to pass login page on workspace ?
2. or Do you mean how you can use a connection file to connect to db that is hide from user?
3. or You mean how to use user & password to login to doc on workspace
Answer for 1:
use link
http://HyperServer:45000/workspace/browse/get/MyFolder/MyIR.bqy?user=admin&pass=password
Answer for 2:
a) Upload or import connection file ( MyConn.oce ) to DB2 into workspace,
b) for IR doc properties change file connection ( MYConn.oce )
Answer for 2:
use link without user & pass parameter
http://HyperServer:45000/workspace/browse/get/MyFolder/MyIR.bqy <?user=admin&pass=password>
regards
siyavuş

How do I set up my new Macbook Pro without using the annoying Voiceover?

How do I set up my new MacBook Pro without using the annoying Voiceover? I cannot get it to work right; it seems to get stuck and repeats the same thing over and over. It is driving me nuts! Is there a way to begin the setup process without using the Voiceover system? I am a new convert from a PC and I thought a Mac was supposed to be "intuitive!"
Any help is appreciated.
Thanks.
Pamela

There is no good reason to register your Mac anyway.
You can opt out of the setup process and registration by pressing Command (Apple key) and the "Q" key.
The registration process requires you to divulge a lot of unnecessary information.

How do I migrate from a 2008 MacBook Pro without a screen to new 2014 MacBook Pro?

How do I migrate from a 2008 MacBook Pro without a video screen to a 2014 Macbook Pro?

Use your backup drive instead. No backup drive, then get a monitor and connect it to your computer. Or take the whole shebang to the Apple Store for help with the transfer. Or you can remove the drive from the old MBP and put it in an external enclosure.

I have many of those lost photos on my iPod. How can I import those to my MacBook Pro without the iTunes synchronization kicking in and removing them?

I lost rather a lot of photos on a corrupted external storage device. I have many of those photos on my iPod. How can I import those
photos into my MacBook Pro without the iTunes synchronization function kicking in and effectively deleting those photos I want to
import from that iPod? Any assistance would be greatly appreciated as those photos now only reside on that iPod...

The photos you synced to your iPod through iTunes are no longer in their full resolution, but instead are scaled down thumbnails of those photos. So if you do manage to get them off your iPod, they will be quite small in size compared to the original ones you lost.
In order to get them off of your iPod, you'll need the help of some sort of 3rd party software. Here is one option.
http://www.macroplant.com/podtopc/
B-rock

How to sync contacts and calendar from macbook pro to ipad 2?

How do I sync contacts and calendar from macbook pro to ipad2?

I have the same problem and have not been able to get contacts transferred from my MacBook Pro to my iPad 2. I have checked "sync contacts", when it does the sync it says it is syncing contacts, but the address book on the iPad remains empty. I tried checking the box under "advanced" that says to replace the contacts information on the iPad, sync again, same result—an empty address book on the iPad. Any suggestions?

How to reset my login password for macbook air

How can I reset my login password for my laptop? For some weird reason, my login password no longer works. I now have to get on by logging into guest and then clicking on my username.

Reset Password using Recovery HD
OS X 10.7 Lion /10.8 Mountain Lion
Follow the instructions in the first and third boxes.
http://pondini.org/OSX/Password.html

How to reset users and groups in Server.app?

Recently after change settings in the Server.app (like turn off/on open directory, delete/add certificates), I got a strange problem:
In the users and groups list, it display all local users and groups (looks like system users and groups, about 100 users and groups, but this is a new server)
I tried reset the server.app by following
howto reinstall/reinitialize os x server
http://support.apple.com/kb/HT200271?viewlocale=en_US
These users and groups still showing there.
Have you seen this before and how can I completely reset the server.app to factory default so that I can start over the set up?

In theory, that should restore the users. You can do some surgery if you are really brave. But the reinstall generally should be enough.
These accounts are in the DSLocal data store. Basically, this is very similar to the any OS X machine. Apple keeps a default copy of the Local Database here:
/System/Library/DirectoryServices/DefaultLocalDB/Default
Should you need to reset a machine to the default local database, you can remove the current database (/var/db/dslocal/nodes/Default) and then copy the default one to the same location. I would not go this far unless the reinstall was unsuccessful.
To check, you can run this command:
dscl . list /Users
That will list all the Users in the local DB. To get a count, pipe to wc
dscl . list /Users | wc -l
On a Server that I just jumped on, I see 79 users and 111 groups (dscl . list /Groups | wc -l) But this is a system will man SACL groups so I likely have more than the default.
Hope this continues to help. Probably more info that you want.
Reid
Apple Consultants Network
Author "Mavericks Server – Foundation Services" :: Exclusively available in Apple's iBooks Store
Author "Mavericks Server – Control and Collaboration" :: Exclusively available in Apple's iBooks Store

How do i reset my master password on MacBook Pro previously owned by someone else?

I purchased from someone else in 2011 and needed to reset master password. It was done, but now I am having problems resetting it. It does not recognize the reset password. I am trying to add new software and can't do so without password. Can someone please help me? I entered to change in terminal window, but when it comes to adding new password, computer won't allow to add new passcode in blank.

Check out KB Articles http://support.apple.com/kb/HT1274 Changing or resetting an account password and http://support.apple.com/kb/PH11390 OS X Mountain Lion: Reset a login password if you are using ML. You never stated which OS you are currently using.

How to reset username and password

I Have a WRT 320 N router and we need to access but it refuses to accept default username and password (admin) what do we do now???

Leave the username blank and admin for password. If it doesn't work, I'm afraid you have to reset the router to defaults.

Does anyone know how to reset the fan on a MacBook Pro 13-inch (Late 2011) to it's factory setting speed (Maybe Terminal may help?)

I have a late-2011 13-inch MacBook Pro running OS X Yosemite. (Standard configuration).
My problem is that I downloaded a fan control application and it worked perfectly, but it started to get annoying so I deleted it.
Does anyone know how to reset the fan speed back to factory settings (Maybe a command in terminal?)

Hello damo1177,
It should help to reset your system's SMC and NVRAM.
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
About NVRAM and PRAM
http://support.apple.com/kb/HT1379
Cheers,
Allen

How to install Fedora and Ubuntu on MacBook Pro?

I've asked this question on facebook groups "Linux" and "CentOS" but got no perfect answer. Again I'm asking the exact question here in hope of getting perfect answer...
I want to "Install" (CentOS 6.0/Fedora 15) or greater" on MacBook Pro (15", Mid 2010, core i7, 2.66 GHz). CentOS/Fedora is the only alternative to Red Hat Enterprise Linux I could come up with. Virtual installation is not my option and I can't use services like "updates" with RHEL unless I pay them.. so CentOS/Fedora is the one that I need.
Need help to install CentOS on MacBooK Pro. Also is it possible to have Ubuntu along side of CentOS?? ..

If you do not want any form of virtualization, the only other option would be wrangling with BootCamp to see if you can do a native install. From what I have read, BootCamp tries very hard to allow you to install just Windows OS, but there may be some way to do it successfully.
Suggest you visit the BootCamp forum.

How to recover data and system in MacBook Pro?

I have a MacBook Pro. I have now problem about booting the system. The GRAY logo comes with blinking by a "Stop" logo and the system can not open. When I use the Mac Installation DVD (Snow Leopard) all my data goes to be erased after installing a fresh one.
Shall I recover my Mac?
If I couldn't recover and was forced to install a fresh OS, is it possible to recover data after having the fresh installation?
Thank you
Diako

diakomacdiako wrote:
If I couldn't recover and was forced to install a fresh OS, is it possible to recover data after having the fresh installation?
Not much, but you can install OS X on a extenral drive, boot from it and recover files, then do the erase and install.
Create a data recovery/undelete external boot drive

How do i install iphoto on my macbook pro without the application disk?

For some reason I uninstalled the Iphone app from my macbook pro, and now I want it back but dont have the disks either. I need some help installing it back without running the application disk. Please help!!!!!!!!!!!!!!!!!!

Call AppleCare and ask them to send you a replacement set. They will charge you a nominal fee for shipping and handling.
Allan

How to reset user and password on MacBook Pro without CD

Similar Messages

Maybe you are looking for