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my password is wrong all of a sudden l

So as I'm trying to log back into my MacBook (it's the 2009 version) my password is wrong all of a sudden like I've tried it so many times & indifferent ways & even tried my old passwords but I literally just changed it a few days ago... I don't know what happened please help ;(
 

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If this is a macOS user password look at Change or reset the password of a macOS user account - Apple Support (also try the old password).

 

If this is an Apple ID/iCloud password try If you forgot your Apple ID - Apple Support.

If this is a macOS user password look at Change or reset the password of a macOS user account - Apple Support (also try the old password).

 

If this is an Apple ID/iCloud password try If you forgot your Apple ID - Apple Support.

Resetting or changing a password:

 

For Snow Leopard or earlier:  https://support.apple.com/en-gb/HT202860

 

For Lion or later:  https://support.apple.com/kb/HT6022

 

For Mavericks users:

 

https://www.macworld.co.uk/how-to/mac-software/how-change-admin-password-mac-3535 328/

 

This is also useful:

 

https://www.macworld.co.uk/ipad-iphone/news/?newsid=3463233&olo=email

 

If it's running Mac OS X 10.6.8 or earlier, insert a Mac OS X install DVD, restart with the Option key held down, click on it, and use the Reset Password utility.

 

If it's running Mac OS X 10.7 or newer, restart with the Command and R keys held down, open the Terminal, and use the resetpassword command:

 

https://discussions.apple.com/docs/DOC-4101

 

If it is the Keychain password that needs resetting:

 

https://support.apple.com/en-gb/HT203192

 

If the computer has a firmware password set, you will need to contact Apple.

 

Apple’s recommendations on password security:

https://support.apple.com/kb/HT4232

最後更新：2017-08-18 09:39:17

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