Hi there I have huge difficulties with enabling .Net 3.5 funcionality in Windows 8 Enterprise x64 PL. I have tried amost everything possibilities. I have tried "dism" command, standalone installer, group policy method & windows update auto installation. Under the first three methods I have the same error "65.8%" with Error: 0x800f081F code. When I have tried to enable this funcionality via "Enable or disable windows function" installer give me error 0x800F0906 when I clicked "Download files from Windows Update service". I have no sollution what is going on. PLEASE HELP ME !!!