The compatibility mode in Windows 10 or 11 is an excellent way to run old versions of software.

There's a few specific reasons why older games won't run automatically on Windows 10, even in compatibility mode: 64-bit Windows 10 no longer supports 16-bit applications.

Tweak the Registry and add Troubleshoot Compatibility item to the Context Menu for older apps/games in Windows 11/10. We show you how!

What Is Compatibility Mode? Compatibility mode is a Windows 11 feature that simulates older Windows versions for your programs. This allows you to run old software on your Windows 11 machine.