If I delete Galaxy and the games installed with it and move it to a new drive will it keep all my saves and games the way they were when I moved it?

Also if I just delete a game unfinished and reinstall later will it also keep my place like Steam or will I have to start over?

If you're using the cloud saving feature for the supported games in Galaxy, then you should be able to import your saves over (I, personally, have no idea as I don't use Galaxy). Otherwise, you need to manually back up your saves. Find out where each game keeps the saves and settings and copy them over manually.

Depends on the game. most modern games keep the saves away from the install folder, and as long as you don't intentionally delete them (either by browsing to them or when give the option while uninstalling) those saves will be ok. however, that's not always the case.

cloud saves its all saved and you're good... if your not saved then the game saves are optionally retained at move/uninstall. You will always see a prompt for saves and if you want to remove them via "programs and settings" or using Galaxy.

Remember that only a limited number of games support cloud saves at the moment.

If you delete Galaxy and uninstall the games installed with it and while uninstalling the games always click on the "keep game related data" button, then move these "game related data" folders, which are likely located in your user folder, to your new computer and install the games (and also Galaxy if you need to) there again, then you should be able to continue where you stopped.

In some cases you don't need to keep and move the "game related data folders" . This is when the game supported cloud saves and you used them. I don't know much about them, never used them myself.

My pro tip: Do it the other way around. First install games on the new computer and copy the save games folders. Only if you can continue playing them on the new computer, uninstall the games from the old computers. This way you are always safe. It would maybe be interesting to get a list of games that store their save games only in the install folder (and do not support cloud saves). I thought UAC makes this nearly impossible in Windows. It stores them always somewhere else.

UAC would only make this impossible if you install to UAC protected folders. I tend to install all my games to E:\Games. My Steam library is there in E:\Games\!Steam. The "!" makes the Steam folder get listed at the top. I did the same with UPlay and Origin, as well as Galaxy. But Galaxy doesn't have to install in the client folder like the others do. That just keeps my clients together at the top of the folder structure.

Also, games would have to be made with the idea that Program files is a bad place to run often edited files. Some modern games do this to keep the game saves on an account by account basis. But For others, they just drop the saves anywhere in your user data folder they think it's appropriate. So instead of your saves going to "My Games", or "My Saves" they'll end up in App Data or wherever the Developers decided on that Tuesday morning. Really there should be some kind of standardization for simple things like that, and while Microsoft tried to kind of make it so, no one adheres to the neat folders MS laid out for them.