Hi, I'm John!
A couple of important things to consider:
Has this email address (or alias) ever been removed from your Microsoft account before?
- If an alias is removed, it usually cannot be re-added or recreated for security reasons.
Also, is it possible that your account may have been hacked? Do you remember receiving any security alert before this happened?
- If you’ve already confirmed the email address is correct and you’re still seeing that the account doesn’t exist, there’s a chance the alias was removed due to unauthorized access.
To confirm:
Try searching for the account using these steps from Microsoft: https://support.microsoft.com/account-billing/forgotten-your-microsoft-account-username-b2049472-3b8f-27d3-61c6-67a668453f4c Click on "Search" and follow the instructions provided.
If you receive any error messages, such as “account doesn’t exist” or anything else, please let me know.