: For older Windows 11 builds, the standard "offline installer" from the website often still attempts to connect to the internet to verify files. Method 1 is more reliable for strict offline environments.

While Windows 11 comes with .NET Framework 4.8 by default, many legacy applications, older games, and enterprise tools still require to function. Typically, Windows tries to download these files via Windows Update, but if you have a limited or no internet connection, you will need an offline installer method.

Installing (which includes versions 2.0 and 3.0) on Windows 11 can be done completely offline using DISM and your original Windows 11 installation media. Method 1: Using Installation Media (True Offline)

: Press the Windows key , type cmd , right-click it, and select Run as Administrator .

Microsoft’s official “.NET Framework 3.5 offline installer” is — it still downloads files from Windows Update unless you point it to a source. Use Method 1 instead.

Here’s a concise, interesting guide to installing offline on Windows 11 — without needing an active internet connection during install.

/Source:D:\sources\sxs : Points Windows to the local source files.