Issues with High CPU Utilization

Applies To: Windows Server 2003 with SP2, Windows Server Update Services

Clients may notice very high (approaching 100 percent) CPU utilization under the following circumstances.

  • 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 described by Microsoft KB article number 938947 (

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