.net 3.5 Offline Installer Windows 11 [portable] [Best Pick]

Type the following command, replacing D: with your mounted drive letter:

Inside the mounted drive, navigate to the sources\sxs folder. You should see a file named microsoft-windows-netfx3-ondemand-package.cab . This is the offline source. .net 3.5 offline installer windows 11

Published: April 13, 2026 | Reading Time: 4 minutes Type the following command, replacing D: with your

Copy the ISO to your offline Windows 11 PC (via USB). Double-click the ISO file to mount it as a virtual DVD drive. Note the drive letter (e.g., D: ). Published: April 13, 2026 | Reading Time: 4

Open Command Prompt as Administrator (right-click Start button > Terminal (Admin) > choose Command Prompt).

While Windows 11 comes with .NET Framework 4.8 (and newer) pre-installed, version 3.5 (which includes 2.0 and 3.0) is not enabled by default. The most common method to install it is via Windows Features during an active internet connection, but what if your PC is offline, on a restricted network, or the online download keeps failing?