I downloaded Photoshop (not from the official site though, someone recommended somewhere else) so anyway I was using it and it was working perfectly fine! Then my computer re-started all by it's self! Then when it restarted it said "Your system recovered from a serious error". Could it be because of my download of photoshop? Or other downloads? Should I un-install then re-install it?

* Everything is working fine, now. But what's above happened about 5-10min. ago.

Any help will be highly appreciated ;)

well... if it was downloaded from "not an official source" then you may have downloaded a virus along with it.

Ok ... so I'm going to uninstall it and download it from the official site. It just happened again, thanks :)

you should run your virus software to do a check.
uninstalling it will usually not "fix" the "problem".

Thanks PB&J ... I'm gonna start that right now :) !