Computer Will Not Respond / HELP!

Hello,

Here's what happened:

My anti-virus detected a virus, I scanned with Malwarebytes and found several infected files including the virus "Vundo" and another with "backdoor" in the name.

Malwarebytes removed the infected files and then needed to restart in order to remove any it could not.

On restart, the desktop did not load, only my wallpaper. I restarted again, and now the monitor light stays orange, none of the keyboard lights go on, nothing loads and nothing responds.

I cannot get into safemode or bios as the keyboard doesn't even act like the computer is on. What at all can I do to fix this? What would a computer repair shop do in a situation like this?

I have many many files I can't lose on this computer, please help..

(posting from someone else's computer)