Reset my administrator password for Office 365
If you're an Office 365 admin and you forgot your password for a work or school account, do one of the following:
If you enabled self-service password reset, use that. It works if you already have an alternate email address and mobile phone number in your Office 365 profile.
Ask another admin
Ask another admin at your work or school to reset your password for you.
If you're the only admin at your work or school, and you don't have an alternate email and mobile phone set up, contact us.
We'll reset your password for you. We can also look up your work or school account if you forgot it.