Ok..this has happened twice now in the past few days. I notice that my pc fan is working very hard...lots of noise. So i open up task manager and see that svchost.exe is taking up 100% CPU. This has now happened twice. I have googled it and svchost.exe seems to be harmless. But i need your expert opinion to see what i can do. Thanks. edit: also..many cases of svchost.exe are running.....but only one taking up the cpu.