Mac 电脑忘记登录密码

If you have forgotten your Mac’s login Password, reset your Password following steps as below:

Boot up your Mac with holding down Command+S key combination, to enter single-user mode;

Run command: mount –uw /

Run command: rm /var/db/.AppleSetupDone

Run command shutdown –h now

Password is deleted now, boot up your Mac to setup your Mac;

If you have set your Master Password and forgotten, also you have not turned on FileVault (and therefore you have no material encrypted by FileVault), then you can reset your Master Password following steps as below:

Boot up your Mac with holding down Command+S key combination, to enter single-user mode;

Run command: mount –uw /

Run command: rm /Library/Keychains/FileVaultMaster.cer

Run command: rm /Library/Keychains/FileVaultMaster.keychain

Run command reboot;