Could This Be A Virus?
Okay so for the last few month so haven't been able to do anything on my laptop. It's a PC and I think it's a HP G62? That's what it says on it at least. Anyways so when I click the button to log in the entire screen goes white. It's been like this for two months now and before that it said I needed to pay money to the FBI to unlock it for having child pornagraphy on it which is absolute bull and it wanted my social security number. So I kinda am thinking it's a virus. I can't log on at all so I'm not sure how to fix it and keep all my files(thousands of railroad pictures and scanned historical documents) which I really do not want to lose. Any help? Thanks.

I can't do anything on my computer at all. I get to the login screen, I then log in and the whole screen goes completely white. There's no way I can open the task manager or start menu or anything. Safe mode and safe mode with networking do not work. I really don't want to have to shell out the money at Best Buy or Staples but then again I don't want I have to wipe it. I still have to try some of the options you guys referred to me. You guys really make me look dumb when it comes to computers!
Really appreciate the help guys.