High cpu usage from svchost.exe / wbemcore.dll

[CTho9305]

My mom noticed that the fan on her laptop was running a lot, and it turns out that one of the svchost.exe processes was using a lot of CPU every couple seconds. Using process explorer I figured out that stopping the SharedAccess service (windows firewall, etc) stops it, and it's wbemcore.dll where the high CPU usage is actually coming from. Where do I go from here if I want to fix this?

 

[Markbnj]

Here is a KB article on the problem. Is your Mom running an SP1 XP install? The problem was fixed in SP2.

http://support.microsoft.com/default.aspx?scid=kb;en-us;838884

 

[CTho9305]

Nope, SP2.

 

[Robor]

Maybe related...? http://episteme.arstechnica.com/eve/forums/a/tpc/f/12009443/m/786004271831/p/5

I've got a handful of users on site that have the 99% CPU spike problem. I fixed it by disabling our WSUS server. Hopefully MS gets this straightened out soon.