How to Decrease the Svchost.Exe 100% CPU Utilization


Are you annoyed by enormous CPU utilization of the svchost process? Microsoft claims that it is a rare problem found in some of the computers but by looking at different forums and discussion boards it doesn’t look that rare. To begin with, it is not a virus, spyware or malware of any kind but the problem lies with Microsoft Update, if you are experiencing this problem then you might want to try these steps to decrease the svchost 100% CPU utilization.

Navigate to Start > All Programs > Windows Update


Choose the option Change Settings from the Windows Update dialog box, from here you can disable Windows Update(which is the main reason of svchost CPU utilization).

automatic update

After this change you will be getting a pop up message that your computer might be at risk, which you can ignore.


All is done, reboot your computer to see the change.

Alternate Solution – Patches 

If this solution doesn’t help you in any way, you can apply thee patches available through Microsoft website in chronological order.

1. Fix_svchost.exe

2. WindowsUpdateAgent30-x86

3. WindowsXp-KB927891

Do let us know if this solution helped your problem. Enjoy !

  • missileman

    I tried several fixes for svchost.exe maxing out the cpu. The 3 Microsoft patches did the trick.

  • brian

    I also had the problem of SVCHOST.EXE running the CPU up to 100%. It seemed to happen about the same time I picked up a virus. Infostealer and a trojan horse. I removed the viruses but the problem didn’t go away. I Turning off the automatic updates and that didn’t help. I downloaded and installed the three fixes and then rebooted. The problem still has not been solved.