|no, there is no fix for this, if you have no other account that you can use to login then you have a problem.|
The only thing that you can is 'clear the password' this can only be done by an external product. You will need to download and burn either to usb or cd hirens Boot CD
Hirens has a tool to reset passwords in Vista and XP. Dont try to change the password, just set it to blank and it will be fixed!!
Please read my blog for more tips http://simontodd.com