: These usually mean Windows cannot find the source file. Double-check that the path points exactly to the folder containing the Version Mismatch : Ensure the
Inside this folder, you will find a file named: microsoft-windows-netfx3-ondemand-package~31bf3856ad364e35~amd64~~.cab Microsoft-windows-netfx3-ondemand-package.cab -Extra
Inside, like a hidden treasure in a digital labyrinth, sat the file: microsoft-windows-netfx3-ondemand-package.cab : These usually mean Windows cannot find the source file
You can install .NET 3.5 using this .cab file in two primary ways, both using the DISM command. It is crucial to run your command prompt as an administrator for either method to work. and select Run as Administrator .
Use the expand tool (built into Windows) or extrac32 :
Cannot install/update .net 3.5 for Windows 10 - Microsoft Q&A
Search for "cmd" in the Start menu, right-click, and select Run as Administrator .