Client Cache documentation appears incorrect
The documentation here states that the Client Cache can be deleted using the Remove-Item PowerShell cmdlet, and implies the files can just be deleted without issue. Won't this orphan the cache elements in WMI?
This information has been updated and we continue to make improvements. See https://docs.microsoft.com/en-us/sccm/core/clients/deploy/about-client-settings for details.
Chad Simmons commented
A good reference for doing it rights is https://gallery.technet.microsoft.com/scriptcenter/Deleting-the-SCCM-Cache-da03e4c7 which points back to https://sccm-zone.com/deleting-the-sccm-cache-the-right-way-3c1de8dc4b48