rgmuir

Thanks very much, Andre. I've followed your script with the Windows 8.1 SDK and uploaded the zipped log here: https://drive.google.com/file/d/0B39RE7vcQxdPN1p5eWJudlhqem8/edit?usp=sharing I also tried the voodoo steps of stopping and starting the WMI service, then restarting the machine. The CPU usage dropped from 20% to about 7%. Better, but still enough to quickly drain the battery on a laptop. Please let me know if anything jumps out as causing the high usage. Regards, Rob.

I've read through various posts, but nothing seems to match exactly the situation I'm seeing. I have a Sony Vaio laptop running Windows 8.1 64 bit which is showing a constant 20% cpu usage from WmiPrvSE. I don't see instructions on how to determine what is being loaded by the WMI Provider Host from the trace file. I've uploaded the trace file here: https://drive.google.com/file/d/0B39RE7vcQxdPMHYwbGdSMGJHeEk/edit?usp=sharing Any help with specifics or a pointer to how I can read the etl file to determine what exactly is being loaded and using so many cpu cycles would be highly appreciated. Rob.