If you have the opportunity, and for obvious reasons of optimization, the better will be to opt for installing all your games on a dedicated partition, different from your operating system, with separate directories for each game installed on your new partition. Or install them on another hard drive, which is still the best option. The steam games need to be installed in the dedicated steam directory, the other games in their respective directories - while well specifying the paths you choose in their setup, namely on the new partition you created previously or on the new hard drive. You will have as a result a hierarchical system, cleaner and more efficient, especially in the context of a possible future removal. The best is to avoid installing games or programs in the windows program files directory. This tip applies to any version of the operating system, either linux or windows.
