I did this because I was playing this game Trickster which required me to install this program called Gameguard. I had read that Gameguard would slow my computer down and leave it vulnerable to attacks and stuff but I figured I could just delete it when I finished. After I installed Gameguard, the "system" process kept using at least 30% of my CPU even after I just turn on the computer. Prior to the installation, it used only 0-5%. Well, the program didn't uninstall with the game and I couldn't find anyone who knew how to uninstall it. (Some people told me to delete a certain registry but I couldn't find it, and no one else could help me.) So I decided to restore my computer back to its original state.
Now, that I've done this, I find that the problem still persists. Does that mean that there's a problem in my hardware? My computer is fairly new (less than half a year or so), so I don't really believe that would be the case. Can anyone help me? :s