I have a laptop, IBM T-60 with Windows XP, SP2 that has been nonresponsive after startup. On further investigation, I found that svchost is at 100% CPU, with wuaueng.dll being the actual culprit. If I let this service continue to run, it peaks out at around 3.5 to 4 Gb of disk I/O read bytes. I have tried several of the published fixes for this, stopping the service, renaming or erasing the folder, etc. but it keeps coming back with the same problem. Is there a way to kill this without damaging the system?