Managing personal Outlook.com account settings, security, and privacy
Hi,
The error message saying 'The account does not exist' usually appears when you enter an incorrect username or email address, the account has been compromised, or you haven’t signed in to your account for more than two years.
- When was the last time you successfully logged in to this account?
- Did you make sure you entered the correct email address?
- Have you noticed any unusual activity on your account recently?