macOS Sierra 10.12.3 Windows 10 Pro 1607 for x64-based Systems (KB3211320) Parallels Desktop 12.1.3-41532 The C drive no longer mounts to Devices (mac sidebar) when I start my VM. It does show up on the desktop and in /Volumes. If you right click and select "Show Original" it will bring you to the mac equivalent of My Computer, but the drive is not visible. It also doesn't show in Disk Utility. Although I'm still able to view the files, I'm getting inconsistent results with applications that use that path. I've uninstalled and reinstalled Parallels Tools at least 6 times, removing the regedit followed by "sfc /scannow". Also tried "del *prl" in windows/system32. I've reinstalled with 5 different methods, the 3 from the KB, reinstalling when I rolled back to PD11, auto run again when I reinstalled 12. I've checked the health of the drive. I've run "SetFile -a v /Volumes/C" in terminal in case it was accidentally flagged as hidden. The drives mount in the same manner if mounted with Parallels Mounter as well.