Computer refuses signon with unknown password

Our computer has mysteriously acquired an unknown password and refuses any signon. We have purposely omitted any signon password (hit return at prompt) because our computers are secure. So the spontaneous injection of a password is problematical. We have tried most recently internally used passwords for applications (starting with the most recent) but nothing works. Short of calling Microsoft does anyone have a suggestion?

We have not originated an account with MS or created any hierarchy of accounts. One user and one signon in an isolated environment.

FREDDEL said:

Our computer has mysteriously acquired an unknown password and refuses any signon. We have purposely omitted any signon password (hit return at prompt) because our computers are secure. So the spontaneous injection of a password is problematical. We have tried most recently internally used passwords for applications (starting with the most recent) but nothing works. Short of calling Microsoft does anyone have a suggestion?

We have not originated an account with MS or created any hierarchy of accounts. One user and one signon in an isolated environment.

Hi Freddel and welcome to Tenforums.

That's odd. You don't have any Microsoft account which someone may have signed in to, changing the computer's local account to an MS account? (of course, this would also change the username you see at login.)

If you have System Restore turned on, you could try restoring to a point in time before this happened.

If no restore points exist, you could turn on the hidden administrator account, and remove the password from your user account that way. Since you can't get into your account, you'd need to accomplish this using Option #4 in the tutorial.