I recently upgraded a number of computers to Office 2003. I've started receiving calls complaining about slow PC or PC hangs for a while when using Outlook and other office applications. I've investigated and found the svchost.exe spikes to 100% usage for about 30 or so seconds. I ran process explorer and found it seems related to the windows update as shown in below screen shot. I've tried KB894391 and KB932494 and it seems a little better but still showing high cpu utilization. Interestingly enough I have not had any issues within Citrix. Anyone else run across this or any suggestions? Matthew Shrewsbury Director of Information Technology