If your looking at games that need dosbox and/or ran fine on Windows XP most likely you are talking about 16bit games. Most Windows 10 machines are going to be running the 64bit version of the OS. Unfortunately, 64bit Windows doesn't run 16bit software anymore. I don't know if this is necessarily a bad thing. After all, how long do we really need to keep things backward compatible (ok, 15 years might not sound all that long but in the tech industry that is an eon)?