Follow these steps to regain access to the Microsoft account on the new computer:
- Use the Sign-in Helper tool
- Go to the Sign-in Helper.
- Enter the email address or mobile phone number used for the Microsoft account.
- The tool will detect common sign-in issues and show specific steps to fix them. If no problem is detected, it will guide through self-service recovery options.
- If the password is forgotten
- Use the password reset flow described in Reset your password from the "I can't sign in" article.
- Follow the prompts to verify identity using security info (phone, alternate email, etc.) and set a new password.
- If the password is known but sign-in still fails
- If the email/username is forgotten
- Use the Look up your Microsoft account option from the same guidance to find the correct account using a phone number or alternate email.
- If verification codes are not received
- Follow the troubleshooting steps for verification code issues linked from the sign-in article to fix problems with SMS, email, or authenticator codes.
- If the account is reported as not existing or the username is not recognized
- Review My username has stopped working and, if the message says “We couldn't find an account with that username” or “account doesn't exist,” use the Sign-in Helper tool again from that scenario.
- If the account has been inactive for more than two years, it may have been deleted and cannot be reopened.
- If none of the above resolves it
- Use Help with the Microsoft account recovery form from the sign-in article to get detailed guidance on filling out the recovery form with as much accurate information as possible.
If additional structured help is needed beyond sign-in, use the guided Get help tool for Microsoft accounts from the account overview page.
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