Guys, I don't think a fresh install is a good alternative. Not only is this long and scary work for someone not so experienced with it, but can also have undesired consequences (DRM issues to be more specific).sounds like malware and/or a bunch of unwanted goodies were installed. You will save yourself a lot of headache if you do a fresh install of windows. Make a backup of your drivers if you don't have the Driver CD that came with your computer. You can also go to the manufacturers website of your motherboard and download all the newest drivers before you start the reinstall. You will notice a vast improvement after you do a fresh OS install.
On a different note, that's where Linux pretty much beats the crap out of other OSes. Almost no maintenance needed.
So, it can actually be more of a cause of headache than save it. Not to mention a fresh install is not the solution to everything.
Yes, it's getting very common and most of the threads down at Tech Support are along the same lines.maybe your pc is infected by malware, it's a good idea you post this thread in section of malware and virus removal forum.. my friend's laptop have similar symptoms with your problem (90% cpu, high temp, slow performance, no response, hang), then it happen to be infected by malware..
The System Idle Process is, if you read the label, a process of keeping the system idle. It's 100 - (minus) CPU Load. It is not meant to affect system performance if too high (quite the opposite). It's when it's low that you are supposed to start worrying. Low System Idle Process means the CPU is under load.The System Idle process normally goes to 90% without affecting the system performance. Let the OS manage the page file, don't disable it, if you don't want to use a fixed size.
To use a malware scanner start in Safe Mode and do a full system scan also you should disable the System Restore because any malicious software is backed-up as well.
The pagefile being disabled won't reduce system performance (quite the opposite). It does reduce stability however, when the system memory (RAM) isn't enough, because the kernel now has nowhere to roll out the extra pages. However, that is hardly the issue at hand.
Yes, doing a System Restore can possibly restore the malware if any. So when you run a malware scan, I strongly recommend you perform a "Complete System Scan", including everywhere that requires administrator-level authority. Practically every byte of information on the hard-disk(s).
Hope you understand what I'm trying to say. If you do not, please ask before taking any steps.