Have a look at the two removal guides below. See which one of the two looks most familiar. The malware responsible causes much of the same symptoms you spoke of. I suspect it may be the first, but see for yourself. If it's neither, let us know.
Remove Windows XP Recovery (Uninstall Guide)
Remove Windows Recovery (Uninstall Guide)
Once determined which FAKE anti-spyware program it is, bypass any ads and go directly to where you see "Automated Removal Instructions using Malwarebytes' Anti-Malware:". Follow ALL the instructions.
The guide also instructs you how to "unhide" the files, you thought were erased. You'll find it below the screenshots for Malwarebytes' Anti-Malware. Along with how to get your desktop background back.
Best of luck..
So here is what happened. First it told me taht my hard disk was corrupted and that I needed a restart... Then, the PC freezed and I couldn't do nothing on it. So I closed it by force and now when it opened up, everything was black and some "Windows XP restore" program was active and I couldn't click on anything. TRask Manager was blocked... Later I discovered it is shortcuted to 17096484.exe (if it can help).
But now, I can't do anything on my PC, start menu is empty (I am now on the second user) and the desktop of the other user is untouchable. I have an anti-virus programs (KasperskY) but i did nothing against it. Did I loose everything? Hope not!
This is why I came here, I have NO idea what the virus is And NO IDEA how to solve this problem.