Can't sing in microsoft account

Use Microsoft’s Sign-in Helper for the “We couldn't find a Microsoft account” message, because it is a separate diagnostic tool from the recovery form you already tried.^1^

Run the Sign-in Helper

1. Open https://aka.ms/sign-in-helper.
2. Enter the affected Gmail address.
3. If it is not recognized, try any phone number or alternate email alias previously attached to the account.
4. Follow the action shown by the tool.

Double-check the exact spelling and domain of the address. Microsoft notes that an unrecognized username can sometimes be accessed through another email alias or phone number associated with the account.^2^

If the Sign-in Helper cannot resolve it

Contact Microsoft Support using the Contact Support option on the same official guidance page:

1. Select Contact Support.
2. Enter Microsoft account sign-in and select Get Help.
3. If offered, select Contact Support again and choose the available chat or callback option.
4. Provide both screenshots and explain:
   • Sign-in says the account cannot be found.
   • Account creation says the same address already has an account.
   • The recovery form has already failed.
   • The Sign-in Helper could not resolve the issue.
5. Have any Microsoft 365 subscription receipts or purchase/order information available, but do not post passwords, recovery codes, or product keys publicly.

Support can investigate the contradictory account-recognition results, but agents are not permitted to send password-reset links or directly access and change account details.^3^

Inactivity limitation

If the account has not been used for more than two years, it may have been closed and may no longer be recoverable.^4^ Microsoft generally requires a sign-in at least once every two years, although certain purchases and active subscriptions can keep an account active.^5^

Do not keep attempting to create a new account with that address while this is being investigated; the creation message alone does not provide access to the original account.

References

1. Microsoft account sign-in helper | Microsoft Support
2. My username and password have stopped working | Microsoft Support
3. What is the Recent activity page? | Microsoft Support
4. I can't sign in to my Microsoft account | Microsoft Support
5. Microsoft account activity policy | Microsoft Support