I believe the system is windows 8 or 8.1 (not certain). Mainboard: Gigabyte 970A-DS3P Processor: AMD FX-8350 Video Card: ASUS Radeon RX 480 RAM: 16Gb Hard disk: WD 250Gb SSD Initial problem was apparent video card failure evident by green lines and static all over the screen. After multiple reboots, computer would not load windows but message was not visible. Upon opening the chassis I discovered mouse droppings, dead bugs, dry larva, & the smell of mouse urine (it had dried at that point) as well as some nesting materials in the bottom of the PC. I cleaned it up as best I could, replaced the video card, set it back up & turned it on. This time it said there was a disk load error & that the disk might be missing or damaged. I took it all apart, secured the cables, noted dried mouse urine on the outside casing of the SSD (but nothing near the wires or any openings). Set it back up & this time it loaded more & said it needed to run a repair. Ran the repair & at first it said it failed. Ran again and it seemed to take. Then got the following message: The User Profile Service failed the logon. User profile cannot be loaded. Rebooted again and am stuck at that point. It lets me see her login name but I get that error whenever I enter. Watched Youtube videos & read troubleshooting pages. The solution requires entering windows in Safe Mode. Problem is, her computer doesn't seem to have a safe mode option. I hit F8 while rebooting. I held shift and hit F8 while rebooting. I held shift while clicking "reboot". I tried the options listed at the bootup menu but none of them had anything that would let me enter safe mode. So, I believe my only option now is to use a boot disk-- which I don't have. I have a friend who has offered to help when he gets a day off, but he works every day until December 5th. I really hope that the SSD card is not damaged. The wires seemed unharmed. In the meantime, I need to get her to keep food away from her computer and to be more diligent about getting rid of trash to not invite mice. Ideally I'd like to replace her whole damn desk. The current one is a cluttered mess.