Not at all sure if others know this if they have forgotten or lost thei password to logging in to windows. Here is what I have found out from Microsoft. When the screen is booting up, keep tapping F8 and go into safe mode. Once in safe mode go to start> run>type in control userpasswords2 and this will send you to the accounts screen. Their you can re-set your password and then reboot and loging with the new passowrd. Also, for future troubles with this, make a password recovery disk just in case you forget it again.

Allan