I recently wiped my bootcamp Win 7 install to update to Win 8.1. No problems with the install, everything went fine. I entered in my legitimate key and it activated. I loaded up Vmware in OSX and I find that I can't activate while in Vmware. It says the key is in use by another computer. I've already read the 2 support articles (here and here) on the Vmware site talking about this issue. The solution states to install the Vmware tools which I already did and it made no difference even after I uninstalled and followed the steps. I never had this issue with Win 7 with bootcamp and Vmware. It activated fine on both. Is anyone successfully running an activated copy of Win 8 in both bootcamp (native) and in Vmware with a single user license key?