System takes a long time to boot

Windows Vista31
Just done a clean install of Vista Ultimate. Everything went fine at first,

no problems. But then it started taking a long time to boot the system. The

green scroll bar appears and moves but there's no disk access for nearly a

minute, then it continues to boot normally. Checking the event log, I have

this error during the boot process:





Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60

WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage

Quote
99" could not be reactivated in namespace "//./root/CIMV2" because of

error 0x80041003. Events cannot be delivered through this filter until the

problem is corrected.





Any idea what's causing this?


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