Hello all, i have a rather critical situation that i am not quite sure how to address. About 4 days ago, my laptop(windows vista premium) contracted some sort of virus disguised as a program called "desktop Defender". this "virus", if indeed a virus, would not allow me to access any of my system whatsoever, and upon shutting down and rebooting the laptop always appeared onscreen. The only thing i was able to do with my laptop was access task manager,..and even then it was only for about 10 seconds(approximately) before i was locked out alltogether and my system shut down on its own. Not knowing the implications of what i had contracted, and not being able to access my laptop regardless, i have since dissasembled the laptop and now my only usable computer is an outdated windows ME desktop, which i am currently using. However, on the 3rd of next month, when i get enough money to afford it, i am going to buy another laptop, but my main worry is that this same trojan, virus, or whatever it is will strike again,...and i simply cant have another computer destroyed by this...do any of you have any advice? Am i safe, or should i take some preventetive action now, and if so, then what? please, i am quite worried about this, and would appreciate any information that can be given.