I have forgotten the password of my administrator account on my MacBook Air

valeer Said:

"I have forgotten the password of my administrator account on my MacBook Air, what should I do?"

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Reset the Password Using the Login Screen:

You'd go through your Apple ID to perform this. Make sure that caps lock is not enabled when typing it. No Success? Go here: If you can't Reset your Mac Login Password - Apple Support

Maybe this guide could help you?

If you forgot your Mac login password - Apple Support