How do i reset my administrator password? its for a MacBook Air

How to Reset Lost Admin Password on Mac OS

Unless you upgraded OS X last summer, you have either Lion Or Mountain Lion, so, you can reset the password without any external disk.

On Lion or Mountain Lion, you use the following technique to reset the Administrators password:

Boot to your Recovery Partition, by holding down the Option key while starting, and then selecting the Recovery HD as the boot choice.

Once booted, at the top of the screen is a menu
>> select Utilities / Terminal from the menu bar.

In the Terminal window, type "resetpassword" (without the quotes) and press return.

A "Reset Password" window will open. Select your boot volume (your SSD drive) (it should already be selected.)

Select your administrators username from the menu labeled "Select the user account" if it is not already selected. Follow the prompts to reset the password.

Restart the computer from the apple menu. (top left corner)
If you are using the Keychain, you will lose your existing one, and have to start a new one, unless you remember the old password.

Your Macbook Air should start up without a password now.

If, in the remote chance this does not work, you get a free year of support on your Macbook Air (3 if you purchased AppleCare). If you have never called AppleCare before, and you are not sure when you bought your Mac, just give them a date that is less than 1 year ago, like October 20, 2013; and then they will step you through support over the phone.
Here's a good page to get numbers and more support, though what I told you should work.
https://www.apple.com/support/macbookair/contact/

All the best to you,
Kerry Hostetter

On Lion or Mountain Lion, you use the following technique to reset the Administrators password:

Boot to your Recovery Partition, by holding down the Option key while starting, and then selecting the Recovery HD as the boot choice.

Once booted, at the top of the screen is a menu ..., select Utilities / Terminal from the menu bar.

In the Terminal window, type "resetpassword" (without the quotes) and press return. A "Reset Password" window will open. Select your boot volume (your SSD drive) if it is not already selected. Select your administrators username from the menu labeled "Select the user account" if it is not already selected. Follow the prompts to reset the password. Restart the computer from the apple menu.

Dear Sir,
Welcome to Fixya Support

Resetting Your Password You can reset your administrator password and passwords for all other accounts. To reset your password, using a partner computer and Remote Install Mac OS X:
1 Follow the procedure for using Remote Install Mac OS X
To use Remote Install Mac OS X: 1. Insert the Mac OS X Install Disc 1 into the optical disc drive of the other computer. 2 .If the other computer is a Mac, open /Applications/Utilities/Remote Install Mac OS X. On Windows, choose "Remote Install Mac OS X" from the Install Assistant. 3. Read the introduction and click Continue. 4 .Choose the install disc you want to use, and click Continue. 5. Choose a network connection: AirPort, if you are using an AirPort network, or Ethernet, if the other computer is on an Ethernet network and you have an optional Apple USB Ethernet Adapter connecting your MacBook Air to the same network. Click Continue. 6 .Restart your MacBook Air and hold down the Option key as it starts up, until you see a list of available startup disks. 8. If you chose AirPort as your network in step 5, on your MacBook Air choose your AirPort network from the pop-up list. If the network is secure, you are prompted for a password. You can enter a private network name by choosing the ellipsis (...) and typing the name. 9. If you chose AirPort as your network in step 5, when you see the AirPort status icon indicating signal strength, click Continue in Remote Install Mac OS X.
10. Click Continue in Remote Install Mac OS X. 11. On your MacBook Air, choose Utilities > Reset Password from the menu bar and follow the onscreen instructions. When you finish, quit Mac OS X Installer. 12. On the other computer, click Quit to exit Remote Install Mac OS X.

I think it helps.Let Me know.

Follow these steps to reset a password when there is only one administrator account on the computer, or if the original administrator account needs a password reset.
Reset MAC original administrator account password

font.f1 {font: 12.0px Helvetica} Thanks for asking your question with Fixya Support. I will be glad to assist you.


If you are referring to locked in regards to your user administrator account, all you have to do is take your Mac OS X installation disc and run the Password Reset utility to reset your password and gain access back into your Macbook Air once again.
--------------------------------------------------------------------------------
Here are some steps you can try to resolve the issue:

BOOT TO TIGER/LEOPARD or SNOW LEOAPRD DISK-
• Place your installation Disk (Tiger, Leopard or Snow Leopard) into your drive and
allow it to load.
• Restart your Mac
• As soon as you hear the Apple Chime, press the "C" key on your keyboard
and hold it.
• You will see a White Screen, Grey Apple first, do not release the C key until you
see a Spinning gear.
• Once you see that Spinning gear, release your C key and allow the disc to
continue loading

- RESETTING ADMINISTRATOR PASSWORD-
(Works for both Mac OS X 10.4 (Tiger) and Mac OS X 10.5 (Leopard))

• When the booting to the Mac OS X disc is completed, you will now be in the
Installer environment
• Enter to next page, look up on upper left corner you should see "Installer" near
the Apple menu.
• Two spaces over you should see Utilities. Click Utilities>Reset Password.

• Select your user name from the drop down list and reset your password.

• When you are done, simply exit the Reset Password and Installer and reboot.

• At the Login window, enter your new password and you should be back into your home profile.

Let me know if this helps!

Thanks!

Regards,

-Mactechtrainer

Learn how to change or reset an account password in Mac OS X, including the original administrator account password. You might need to do this, for example, when someone has lost or forgotten his or her account password.

Tip: If you forget your login password and your home folder is protected by FileVault, seeI forgot the password to my encrypted home folderhttp://docs.info.apple.com/article.html?path=Mac/10.4/en/mh1909.html





Resetting a user's password in Mac OS X v10.3 or later
Note: For information about resetting a password in Mac OS X v10.2.8 or earlier, see the Additional Information section below.

1. Log in with an administrator account. Tip: If you don't know the password of any administrator accounts, see "Resetting the original administrator account password" below.
2. From the Apple menu choose System Preferences.
3. From the View menu choose Accounts.
4. Click the lock button if it appears locked; enter the administrator password.
5. Select the username whose password you want to change.
6. Click the Reset Password button (Mac OS X v10.3 and v10.4) or the Change Password button (Mac OS X v10.5 or later).
7. Enter a new password in both the Password and Verify fields, and add a hint if desired.
8. Click the Reset Password button (Mac OS X v10.3 and v10.4) or the Change Password button (Mac OS X v10.5 or later).
9. If a dialog box appears with the message "Your Keychain password will be changed to your new account password," click OK.

Important: Passwords for administrator accounts should not be blank.

By not being more specific, when you note that you are locked out of your Macbook, I would have to presume you are referring to your User Administrator account or you have a FileVault password which is prompted for, upon booting up and you have forgotten that password.

Not sure which could be the case, so I will 1st provide you steps for resetting your Administrator password with your Mac OS X installation disc and 2nd, provide you, a key Apple support link, for fixing the forgotten FileVault password (just in case this is the culprit, which is locking you out of your Macbook).

BOOT TO TIGER/LEOPARD DISK-
• Place your installation Disk (Tiger or Leopard I presume) into your drive and
allow it to load.
• Restart your Mac
• As soon as you hear the Apple Chime, press the "C" key on your keyboard
and hold it.
• You will see a White Screen, Grey Apple first, do not release the C key until you
see a Spinning gear.
• Once you see that Spinning gear, release your C key and allow the disc to
continue loading

- RESETTING ADMINISTRATOR PASSWORD-
(Works for both Mac OS X 10.4 (Tiger) and Mac OS X 10.5 (Leopard))

• When the booting to the Mac OS X disc is completed, you will now be in the
Installer environment
• Enter to next page, look up on upper left corner you should see "Installer" near
the Apple menu.

• Two spaces over you should see Utilities. Click Utilities>Reset Password.
• Select your user name from the drop down list and reset your password.
• When you are done, simply exit the Reset Password and Installer and reboot.

• At the Login window, enter your new password and you should be back into your home User Administrator account.

---------------------------------------------------------------------
-- FORGOTTEN FILEVAULT PASSWORD--

Apple Support Link:
Help if you forgot FileVault password

---------------------------------------------------------------------

Regards,

-Mactechtrainer

If you have the discs available that came with the Macbook you can use the utility on them to reset the password. 1. Reboot insert the disc and hold the C key untill you get the welcome screen. 2. Click on the language you prefer and proceed as though you are going to reinstall the software. 3. At some point you will notice the menu bar at the top. Click on the drop down menu for utilities and you will find "Reset Password" If you do not have the discs available you can also use terminal to create a new administrator account and then reset the password. To do this 1.Reboot 2.Hold down the apple and S keys after you hear the chime. 3.At the text prompt enter these commands following each one with the return, • mount -uw / • rm /var/db/.AppleSetupDone •shutdown -h now
reboot and you should have a new admin account

From the Apple Support Forum for MacBook (yes, 3 generations later than yours.)
"With the original install discs that came with the MacBook, you can reset the administrator's password. Follow the instructions for "Resetting the original administrator account password" in this document: http://support.apple.com/kb/HT1274"
-Ken