Hi, thank you for reaching out to the Microsoft Q&A forum. I’m happy to help.
The system may have detected unusual activity that caused your account to be locked, such as access from unverified devices or locations. Did you use a familiar device when resetting your password?
To unlock, please visit the support article below, click the "Sign in" button, and follow the steps provided. Be sure to review the tips included in the article, as they can help improve your chances of successfully recovering your account.