Or just do what danlisa suggested and get the no-cd crack. Works, so you don't have to buy the game yet again.

Well, I am very strict on downloads..this gaming pc is never going to have any viruses on it. Can you tell me a good and clean download of the no-cd crack?

It's against Subsim's policy to link that kind of stuff, but Google and a handful of cautious approach should get you there. If you're uncertain on your virus protection you can always use these:

http://www.kaspersky.com/scanforvirus
http://onlinescan.avast.com/

I have Zone Alarm, I googled it and I found a nocd crack with no virus or spyware! It seems to have worked..Star-Force was the problem.