troubleshooting Question

Exchange 2010 store.exe 100% CPU Utilization

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elong0003Flag for United States of America asked on
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I have a perplexing problem with a SBS2008 server running Exchange 2007. The environment is:

VMware guest running SBS2008
Exchange Roles mailbox, CAS, HUB no Edge (single server config)
18 Users

No Antivirus installed
Exchange Version 8.3 build 83.6

Store.exe constantly peaks at 100%. I have found numerous similar issues and have attempted all applicable fixes:

Stopped Windows search, applied all service packs and rollups.

The only event log error is "MSExchangeFBPublish Error Updating public folder with free/busy information on virtual machine server. The error number is 0x8004010f.

How can I figure out what store.exe is doing?

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