[HELP] MTK + Win8 Pro w/ Media Center, can't upgrade to 8.1 I made a mistake, I use MTK before install win 8.1, now, it wont upgrade saying it is not the proper licensing, I use: - MTK uninstall build-in - slmgr /cpky - slmgr /upk - slgmr /ipk*****-*****-*****-*****-***** and still can't access the win 8.1 in the store....
hum.,... I uninstall them, the "Free 8.1 upgrade" now shows up, but when I click on it, it does nothing