I factory reset it last night because it was running very slow. I left my house to go to the store. When I came back it was on the bios screen. It stayed there for about a half hour then it came to a blue screen and asked me what operating system I wanted it to rub. The only options was windows 10. I clicked on it, and ever since then it's been going back and forth to the bios screen. The screen stays black for a few seconds, then goes to the bio screen. This has been happening over and over again. Or around 16 hours. I tried turning the desktop off and on but it's just doing the same thing.