: Press the Windows key , type cmd , right-click it, and select Run as Administrator .
This is the most reliable "true" offline method. It uses the installation files already present on a Windows 11 ISO or bootable USB drive. Download .NET Framework 3.5 SP1 microsoft .net framework 3.5 offline installer windows 11
You will use the Command Prompt to execute the installation command. : Press the Windows key , type cmd
/LimitAccess : Prevents DISM from trying to contact Windows Update. : Press the Windows key