DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs Use code with caution. Copied to clipboard
For Windows 10 and 11, there isn't a "one-click" official standalone .exe download for the .NET Framework 3.5 like there used to be for older versions . Instead, it is a built into the OS that you must enable . How to Install Offline (The Official Method)
Many older apps (games, accounting software, CAD tools) require .NET Framework 3.5. Installing it online via Windows Features often fails due to slow downloads or corporate restrictions. The offline method is faster and more reliable.
If Version exists and Install = 1, you’re done.