Navigate to the registry location on your OS such as c:\windows\system32\config\system,name it “temp”. I'm doing it with bartPe disk...but then I open my Pc there is no disk C.What to do? Update1: I found disk C,I'm goind to the windows\system32 and it is empty.What to do? Another update:For some reason after restart the files in system32 are visible.I did just like in the instruction.After restart it told that my activation is failed... But I messed up,so now I'm reinstalling it again... Update3:After I did load hive and changed installed from 0 to 1 and unload it, I boot up system and it said that windows activation is gone,reinstall it again.Damn... Update4:Stupid me.Lol.I was changing the Dword file,but what I needed was to delete it нахуй and to make a String.Now installing it. Update5:WOOOOOOHA!I installed it...but I can't install rollup 2.It said that this update is only for media center.