Computer's down, part 1(?)

Okay. Those of you who know me already know this, but there is a nasty little problem with my computer as of late. You see, it all started with a virus known as a trojan backdoor, supposedly. This virus caused me to use Gateway's proprietary software to reset the computer to like it was when it came out of the factory. I know not all of you speak geek, so I'll try to put what happened next in as simple terms as what came before it. I went through the two hour process of the factory reset, only to get as far as the log in after. I then got a black screen (and honestly, if they don't want you to shut the computer down at that point, they should say so). After 20 minutes of waiting, I finally decided to try to hard reboot (simply meaning I pushed the power button until it shut off, and then pressed it again), only to find that it would go as far as the orb screen, then would restart itself! You can imagine my frustration, and so I took it into Geek Squad. And there it sits, until the issue is solved. Not to mention that I'll have to install a ton of software on it before it'll be back to its former glory.