I use a Dell XPS 1640
Processor Intel Core 2 Duo P8700 @2.53 GHz
4 GB DDR3 RAM
Windows Vista Home Premium service pack 1 32 bit
ATI Mobility Radeon HD 4670
The problem mainly occurs when I play games, commonly 5 minutes or more into the game, where CPU usage goes up to 100%. This causes the games to lag very badly, and I usually have to close it, to be bombarded by high cpu usage until I restart my laptop. As this is an XPS, the main reason I bought it was to play games too.
After searching on google, I stumbled upon process explorer, downloaded it, and it gave me the first step in finding out what the problem was. Svchost, one of which was taking between 30-50+ CPU usage when this happens. With the help of procexp, I found out that the services responsible for this was Dcom and Plug&Play. However, these services cannot be killed, as killing them results in the automatic reboot. However, I have to point out that once I kill this process, in the time before the reboot, CPU usage returns to normal.
Well the problem started almost 2 months after I bought my laptop, last year in August. After that, I was pretty frustrated because I could not at all solve the problem or figure out what was causing it. So, I decided to completely format my laptop, and reinstall windows, which I did, 2 days back. I thought I had solved the problem, but turns out the problem still existed. Now I for certain know that this is not a virus, spyware or adware or any sort of that which is causing the problem because one of my first steps was to run Mcafee and scan the system completely. I have McAfee installed right now and it does not show any suspicious activity.
The enhancement problem pointed out be a lot of people of the internet also does not work for me, as I have already disabled all of them on my laptop. One thing I noticed when this problem existed before I reinstalled windows was that right clicking on my desktop took the CPU Usage to a shocking 20% to 40% sometimes. Then I used procexp to find out why, and it wasn't shocking at all. Dcom and Plug&Play again! But then again, ATI Catalyst Center was one of the items which appeared when I right click on the desktop. So, when I reinstalled, this time, the only thing I installed was the ATI Driver and not the program.
This seemed to have solved the right clicking problem. However, the problem of CPU Usage spikes when playing games still exists, where few minutes into a game, and CPU usage goes to 100%, with Dcom taking up to 40% or more. Back to system reboot...
I am very desperate to solve this problem, so any help would be very highly appreciated. Thanks
Edited by The Sacred One, 22 March 2010 - 11:31 PM.