Here is the using your Windows 10 Installation Media (USB or ISO).

You just tried to install an older game, a legacy accounting tool, or a specialized piece of engineering software. Suddenly, you are greeted by this pop-up:

Copy and paste this command exactly , replacing D: with your drive letter:

Don’t panic. You don’t need to hunt through shady "download dot net" websites. In fact,

Open Command Prompt as Administrator (Right-click Start button > Terminal (Admin) or Command Prompt (Admin)).

Why? Because the framework is actually already built directly into your operating system. You just need to "turn it on."

Note the drive letter of your Windows USB/ISO. (e.g., D: ).

A Windows 10 USB drive or an ISO file mounted as a drive (right-click the ISO > Mount).