Some programs written for even older versions of Windows may work on Windows 10 without an issue. For other pieces of software, it may take some additional work to get it up and running.

64-bit Windows 10 no longer supports 16-bit applications. Some older software depends on old Windows libraries that are no longer included with Windows 10.

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

Use the Compatibility Mode to run old Games and Software on Windows 11 and Windows 10. Make old programs and games work!

This app can’t run on your PC To find a version for your PC, check with the software publisher. If you want to run the DOS programs on Windows 11/10, you need to install a DOS emulator software.

Windows 10 users who aren't upgrading to Windows 11 need to enroll in a Microsoft's Extended Security Updates program to receive critical security updates.

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.