If you’re unsure whether this method works, you can click on “Test Program”. If you can’t find the application, click Not Listed to open it manually. For Windows XP games that aren’t listed, you can choose Not Listed. If you’re using a Windows 10 PC, you can use administrator rights to access the game’s file. However, it may be necessary to change the permissions for it to run. Once you have found the program you want to test, you can run it as administrator. First, open the program’s properties window and click on the Compatibility tab. Most games run smoothly in compatibility mode, a special setting in Windows that emulates older versions of the operating system. The answer to this question depends on what version of Windows you’re running. You may wonder how to play your Windows Xp games on Windows 10.