VMware VMCI Bus Device appears under the System Devices section of Device Manager.
The VMCI device is used for host-to-guest communications.
Based on the update file I checked, I find the update includes this file. So I think it comes with the update. But for VMware tool, the VMCI driver is installed by any option you select during installation. Doesn't it affect your system.
Hope this helps and please help to accept as Answer if the response is useful.