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.