So i turned my computer on and my login input for my 4 digit passcode is gone. To explain a bit more when i first boot up my pc it gives me the standby screen the i click my mouse or press any button on my keyboard and it swips away as per the usual boot up but the next screen only shows, the networks, easy of access, and power options. The input for my pass code is gone. I'd really apperciate some help on this to keep my from beating my head against the proverbial brick wall.