I've had NOD32 on my HP laptop with XP for a month. I installed Startup-Mechanic and it found 3 harmful Trojans. I disabled them. My laptop then booted up and "fixed & deleted" lots of stuff and now will not start (even in safe mode). It just goes to blue screen with the windows logo. Hey, I just accidentally found that F11 goes into a recovery mode. So I hope that does something good! I had very little on the computer, so I'm only half sad. Hopefully only a half day wasted.