You need to download the VMX file for the VM, edit it, and stick that at the end.

If you paste this from here beaware you’ll need to retype the ” that are surrounding the FALSE, because in the copy process it messes them up for some reason.

isolation.tools.guestInitiatedUpgrade.disable = “FALSE”

http://www.boche.net/blog/index.php/2012/05/31/update-vmware-tools-via-windows-system-tray/