Using Classic Outlook on Windows for personal email, calendar, and contact management
Hello, thank you for reaching out to Microsoft Q&A.
If you repeatedly enter an incorrect password multiple times, your account will be blocked for security reasons.
You can use the Outlook sign-in helper tool below to unblock your account.
Unblock my Outlook.com account
(or) You can use the account recovery form instead.
Remember to use a familiar device from which you've frequently accessed your Microsoft account, as well as a familiar location. Microsoft will review your responses and respond within 24 hours. If you are verified, instructions on how to log back into your account will be sent to you, and if you are not verified, you will need to submit the Account Recovery form again. You can do this up to 2 times every 24 hours.
Important: The account recovery form can only be used if two-step verification isn't turned on.