I recently bought a new SSD for my computer and installed a windows 7 on with a help from my friend. We plugged it in, and set the computer to boot from that version of windows. I'm wondering about what exactly happened to all the programs and games of my "previous" windows? We left it untouched at the original C, which is now F-drive. They don't show up on programs, but their files can be found.
Steam, where most of my games are, works after a little trickery, but for example L.A.Noire, a non-steam-game, fails to launch because it "Could not locate game executable on local machine". Because it doesn't show up on removable programs and there's no uninstall file, there is no way for me to remove it, only the files.
What happens if I do so to it, or other programs with same situation? Are they really gone? What should I do here?