To install .NET Framework 3.5 (which includes .NET 2.0 and 3.0) on Windows 10 64-bit without an internet connection, you must use the original Windows 10 installation media (ISO or USB). Windows 10 does not come with a pre-packaged standalone "offline installer" exe in the traditional sense; instead, the necessary files are stored in the sources\sxs folder of your installation media. Microsoft Learn Method 1: Using DISM (Command Prompt)
Share this guide with your IT team or save it for your next Windows refresh cycle. If you found this article helpful, consider bookmarking it – because the next time you reformat Windows, you will need this offline installer again. Net Framework 3.5 Offline Installer Windows 10 64 Bit
dism /online /Get-Features | findstr /i NetFx3The installation files are located within the installation media. The path is typically: [Drive Letter]:\sources\sxs Inside this folder, a file named microsoft-windows-netfx3-ondemand-package.cab should exist. The DISM command does not require specifying the .cab file explicitly; pointing to the sxs folder is sufficient. To install