prefetch problems

[Bruce]

Frequently my keyboard locks up and on reboot I get the
following message:
windows\prefetch\logonui.exe-oaf22957.pf first allocation
unit is not valid. the entry will be truncated. PLease
advice how to correect this problem

Thanx

 

[Rich Barry]

Bruce, try cleaning out your Prefetch folder. C:\Windows\Prefetch