Hello, thank you for reaching out to Microsoft Q&A.
This type of error typically resolves itself within 24 hours. During this time, please avoid signing in repeatedly. Please note that it can take up to a maximum of 7 days to resolve the issue.
If you are still experiencing issues, you can try the account recovery form here to unblock your account. However, this form does not work if you have enabled two-step verification in your account.
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.
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If you have two-step verification enabled, you can submit the account reinstatement form to the Microsoft Account Digital Safety team. They will review your responses and the reasons your account was disabled, and they will help reinstate your account.
https://www.microsoft.com/digitalsafety/account-reinstatement
Select "I am having problems with my password, or I can't log in or reset my password," and submit the form.