Hi SimmiJoshiVialto-5591,
The error message "Microsoft Account does not exist" usually means: The person is logging in using an Alias.
If the user renamed the affected email address into a new account, the original account will become an Alias.
Thus logging in using the original account (Alias) will trigger the system to prompt the user that it does not exist.
The solution is to log in using the new account.
The person mistyped the email address. Retyped the correct email address.
The person did not access the account (WITH A BROWSER) within 365 days.
The account will be deleted permanently in the system due to inactivity.
You may recreate the account as a new account if it is still available.
You may need to create a new account in order to gain access.
You can also visit the Microsoft account website to verify your credentials:
I hope this answers your question.
Thanks.
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