I have noticed that if I re-install/upgrade VMware tools from the 64bit installer within Windows Server 2016 it creates an additional instance of the VMCI host driver in device manager.
The extra driver creates a Warning event in the Windows system log = VMCI: Failed to create device (status=0xc0000035) Source vmci EventID: 2.
While troubleshooting the event, I removed and re-installed the VMware tools. This created a third instance of the driver and a second instance of the System Log warning.
I noticed that the extra devices (displaying the Bang exclamation for not functioning hardware) showed in their properties window that the driver failed due to "duplicate name exists".
Workaround = In troubleshooting on a non-vital system, I right clicked and un-installed the errored instances of the VMCI Host driver (duplicates) and left the copy that the driver loaded correctly.
Upon restart the System log warning did not return and the normal VMware VMCI Host Device driver loaded normally.
Is this problem created by the VMCI Host driver being locked by the windows system during re-install/un-install?
Reason for the question is to possibly have the issue corrected in future revisions of the VMWare tools installer so manual removal of the erred drivers is not required.