Framework 3.5 1 Windows 7 64 Bit Download ((free)) — Microsoft Net

and wait for Windows to complete the process. You may need an internet connection if Windows needs to download supplemental files via Windows Update Troubleshooting & Manual Updates

Technically speaking, .NET Framework 3.5.1 is an in-place update to .NET Framework 3.5 (SP1). It includes: microsoft net framework 3.5 1 windows 7 64 bit download

If you are receiving specific error codes (like 0x800F0906 or 0x800F081F ) stating that the source files cannot be found, you may need the official offline installer. This is intended for system administrators or offline machines. and wait for Windows to complete the process