WinXP automatic update service causes CPU usage of SVCHOST.EXE process to be too high

description of the problem

WinXP system, CPU occupancy rate is too high SVCHOST.EXE process, if you stop the Automatic Update service, high CPU utilization problems disappear.

when the computer is slow, need to see the process of CPU usage and PID, open press ctrl + alt + del to open Task Manager, click on "View - Select Columns" Tick PID (Process Identifier )(As shown below). Then view the process information on the Processes tab. XP systems may have multiple processes named svchost.exe. If you find that the CPU usage of a svchost.exe process is high, write down the PID of this process. You can use the following method to confirm whether Automatic Update (AU) causes the SVCHOST CPU usage to be too high. PID

1, with the following command line to find running Automatic Update service SVCHOST process to see whether the same CPU-high PID. If they are the same, you can judge this problem.

Tasklist ?Cm wuaueng.dll

Steps 2, 2-4 Users help to determine the problem. Execute the following command line to force the client to initiate patch detection (in some cases, this command line
can reproduce the problem of excessive CPU usage)

Wuauclt /detectnow

3 Find the PID of the SVCHOST process running the Automatic Update service in the task manager to see if it causes
long CPU usage is too high. (The CPU height in a short time is normal)

4, disable the Automatic Update service to see if the problem disappears

Solution

You can try the following method Can you solve this problem:

1, install update KB927891

http://support.microsoft.com//kb/927891

2, if the update KB927891 is installed After that, the client still has a continuous 100% CPU problem. Please

download and install the latest WSUS 3.0 client:

http://download.windowsupdate.com/v7/windowsupdate/Redist/standalone/WindowsUpdateAgent30-x86.exe

For 64-bit operating system:

http://download.windowsupdate.com/v7/windowsupdate/redist/standalone/WindowsUpdateAgent30-x64.exe

http://download.windowsupdate.com/v7/windowsupdate/redist/standalone/WindowsUpdateAgent30-ia64.exe

For more detailed information and patch downloads on this issue, see the Microsoft Knowledge Base :

http://support.microsoft.com/kb/927891/