 How To Remove A User Name/Password From Just One Site
Sometimes you want to delete a user name and password from just one website. Clearing all cookies deletes all user names and passwords from all sites. So to remove a user name and password from just one site, just do this:
Navigate to the site in question.
When prompted for your user name/password just click in the user name box and press the down arrow.
This will show all user names stored for the site (usually just yours).
Press the down arrow until your name is highlighted then press the Del key.
Windows will ask if you want to delete the user name and password, click on Yes and they are gone. | 
