Reset the Automatic Updates System – Windows XP SP3
Open a command prompt: Start | Run | cmd /Enter
net stop “Automatic Updates” – ENTER
del /f /s /q %windir%\SoftwareDistribution\*.* – ENTER
net start “Automatic Updates” – ENTER
wuauclt.exe /detectnow – ENTER
What this does is: Stops the Automatic Update service then flushes the content of the folder “SoftwareDistrubution”; it then starts the Automatic Update service and then forces an update cycle to start.
Reasons to run this is: The svchost.exe file running at 100% CPU usage or slightly less but crippling the computer system never the less.
Diagnoses: Open command prompt type: “tasklist /svc” this will list all running tasks. Open Task Manager and view which PID/svchost.exe is running at 100% or slightly less.
If you do not see PID in Task Manager window: open the View menu inside Task Manager and select “Select Columns…” option and place a check mark in the “PID (Process Identifier)”