Software

How do I run an old program on Windows?

Updated 2026-08-14

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Quick answer

You can run an old program on Windows by using Compatibility Mode or a virtual machine. Compatibility Mode allows you to run the program as if it were on an earlier version of Windows.

Running old programs on Windows can be achieved using built-in compatibility features or virtualization solutions.

Steps

  1. 1

    Access Compatibility Settings

    Right-click the program's executable file, select 'Properties', then go to the 'Compatibility' tab.

  2. 2

    Set Compatibility Mode

    Check 'Run this program in compatibility mode for:' and select the desired Windows version from the dropdown menu.

  3. 3

    Test the Program

    Click 'Apply' and then 'OK'. Run the program to see if it works as expected.

  4. 4

    Install a Virtual Machine

    Download and install a VM software like VirtualBox. Create a new VM and install an older version of Windows to run your old program.

Using Compatibility Mode

Windows includes a Compatibility Mode feature that lets you run programs in an environment mimicking older versions of Windows. This can help resolve issues with older software.

Using a Virtual Machine

If Compatibility Mode doesn't work, consider using a virtual machine (VM) to run an older operating system. Software like VirtualBox or VMware can create a VM where you can install an older version of Windows.

Watch out for

  • Some older programs may not function properly even in Compatibility Mode due to significant changes in Windows architecture.

FAQ

What if Compatibility Mode doesn't work?

If Compatibility Mode fails, try running the program in a virtual machine with an older Windows version.

Can I run 16-bit programs on 64-bit Windows?

No, 64-bit versions of Windows do not support 16-bit applications. A virtual machine with a 32-bit Windows OS is required.

Are there any risks in running old software?

Yes, older software may have security vulnerabilities and compatibility issues, so ensure you trust the source and understand the risks.