Issues with High CPU Utilization

  • Article

Applies To: Windows Server 2003 with SP2, Windows Server 2008 R2, Windows Server 2008 R2 with SP1, Windows Server Update Services, Windows Small Business Server 2011 Standard

Client computers may experience very high (approaching 100 percent) CPU utilization under the following circumstances.

An access violation error message appears and the system may appear to become unresponsive when you try to install an update from Windows Update or from Microsoft Update

  • There is an update for this issue. For more information, see article 927891in the Microsoft Knowledge Base.

There are a large number of superseded updates approved on the WSUS server

  • This problem occurs if you do not decline expired definition updates or expired malicious software (also known as malware) updates on the WSUS server. There is an update for this issue. For more information, see article 938947 in the Microsoft Knowledge Base.