vRanger FLR service does not start or stuck in starting mode.
There may be instances where an old registry entry created from an earlier vRanger DPP version is not amended.Once removed the FLR service can start normally.
The workaround is to delete the registry key
(HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EvmcVddInvs) then reboot.
The FLR service should start fine after this.
Using Registry Editor incorrectly can cause serious problems that may
require you to reinstall your operating system. Microsoft cannot guarantee
that problems resulting from the incorrect use of Registry Editor can be
solved. Use Registry Editor at your own risk.