I recently upgraded my laptop to Windows 8 and when attempting to power on my virtual machines running on VMware Workstation 9 I received the following error message:
“Could not get vmci driver version: The handle is invalid. You have an incorrect version of driver “vmci.sys”. Try reinstalling VMware workstation.
This worried me a bit at first but luckily there is a workaround you can do!
If you open up the configuration file of the VM you are trying to power up in notepad and edit the following line:
Set the vmci0.present = FALSE and you should be good to go