Ik heb dit stukje gevonden:
Just click the Start Button, then click the Control Panel. Then, click User Accounts in the
Control Panel. Select your account name, and then on the left side of the screen, under
Related Tasks, click 'Manage my Network Passwords'. In the window that opens, you can remove
an account by clicking the passport you wish to delete [denoted by (Passport)], and then
click the 'Remove' button
Als het goed is, is je probleem opgelost.