I bought an HP Pavilion floor demonstration computer from a general retailer. The salesman assured me that all previous user accounts and information had been removed and the computer restored to its factory configuration before I took delivery. However, when I boot it up from a cold (power off) start, I get an error saying that the password entered for user Kiosk is invalid. Kiosk is apparently the name of the default start up user account. My workaround is simply to switch users to the administrator account. The Kiosk account does not appear in the list of user accounts in the 'add or remove user accounts' tab in the control panel. The Kiosk file folder in the Users folder is empty. How can I change the default start up user account? The store did not create a password reset disk.