hi i am a novice at this and would apreciate any advise you could give,i have a hp vista home premium 32 bit pc.i backed up my files onto an external hardrive as i have read was the proper thing to do.i think one of my downloads was infected with a trojan horse so i tried a system restore,that did not help,so i did a system recovery back to factory settings i would now like to install my files from the external hardrive but i dont know where to begin as i understand when they get backed up on the hardrive they are in a compressed state if someone could please explain in simple terms, as i said i am still in the learning process and any help would be greatly appreciated....than you.