I've read about it but I'm still a little confused. I only want my OS and like one steam game. So I know I disconnect HDD, connect SSD, fresh install windows, change boot priority to SSD, then connect HDD back. I get that part. But what I don't understand is whether the files from my HDD will work the same. After I fresh install windows, is it possible just to move folders such as games to the SSD sort of like a USB or do I have to fresh install anything that I want to run from the SSD (like if I want to play a steam game off of the SSD do I have to download Steam and the game on the SSD)? And what exactly does my OS include, is it just the file named "Windows" in my C: drive?