The other day I was trying to uninstall and then upgrade my VMware Workstation from version 10 to 12 and I kept getting an “MSI ” Failed” Windows Error.
Turns out it helps to stop not only VMware programs running via Task Manager, but to also stop the VMware Windows Services. After that, VMware Workstation 10 uninstalled successfully and I was able to install VMware WS 12 with no problems!
Well, there was one problem involving an hcmon driver error, but it was an easy fix.
Note: Restart your machine after installs/uninstalls so other issues don’t arise! (This is important!)