So yesterday I installed windows 8 x64 enterprise to test it out but i soon found out my ATI Radeon HD3870 doesn't have proper drivers (the legacy ones are awful) so i went back to windows 7 (i created 2 partitions). Back to windows 7 I saw that it had become deactivated so I downloaded windows 7 loader and installed it again. Afterwards I went searching around guru3d forums to see if I could find modded drivers for my card for windows 8 and I did so I booted 8 again and installed them by disabling driver signature enforcement. All was going well until... I found out that Windows Update disapeared on "PC Settings": If I try accessing it by searching for Windws Update I get this: I can't also change anything like UAC and account type, clicking on any options doesn't do anything: Trying to create a folder inside "Program Files" doesn't work: Trying to change "Program Files" read/write options leads me to this: And I can't also delete or move anything inside "Program Files". Could anyone help me out? Before doing all of this I disabled UAC right after I installed 8 for the first time by the way. I activated windows using win8kms4.mooo.com server.