i wanna update my pc from windows 7 Home Premium. but its becoming impossible. it says error code 80072F8F. i searched on google, youtube and microsoft website on how to fix it. and the only suggestion i am getting for this error is to correct my time and time zone and it is correct, so thats not the problem. and i cant use some new app on my pc. it keeps saying some dll files are missing. so i tried running DiectX to fix that and that failed to. pleaseeeeee guys help me update my pc