Hello,
To troubleshoot this issue, we'll need to gather more information.
Who took your Microsoft account?
- First of all, you need to make sure that the email address or username you entered is exactly right, including both case and spelling. If you're not sure if you entered the correct email address, try remembering whether a different email address or phone number you used was associated with the Microsoft account.
- If you can't sign in through the usual way, you can use Microsoft's App Accessibility Tools to help recover your account. Visit the following link and follow the prompts:Ayuda con el formulario de recuperación de una cuenta de Microsoft - Soporte técnico de Microsoft
- If you confirm that your account information is correct, but it still says "Account does not exist", it may be because the account has been permanently deleted. Microsoft automatically deletes accounts after they have not been used for an extended period of time. If that's the case, you can only create a new Microsoft account.
I hope this information helps.
Best regards,
Jingjing Wu