Originally Posted by nvc_vishwanatha

Hi, May i just add to this thread. I am not sure if i must be writing this in a new thread, but my problem, very closely matches with this topic. My friend's PC (Windows XP home) also has the same problem. 100% CPU usage even when idle, and checking on task manager doesnt show any single process consuming huge %age. I reinstalled windows operating system assuming it could be due to some malware, but to my surprise, the problem still persists. It take a long time to boot up also, because of this 100% CPU problem. literally around 10 mins to finish up loading all minimum start-up programs. I also ran HijackThis on that PC and didnt find any unwanted processes in it. This being a new installation, the log itself was very short. I am afraid, i dont have the log right now, i will post the log, if you ask for it. But my question is, how can this happen in a fresh OS installation. Is that, then related to some hardware problem ?