How many of these tweeks can be done without editing the Registry? And if they are all registry modifications can’t you just backup the registry before applying the changes?
You can backup the registry or create restore points but I don't think that you can selectively revert these changes like a commit. If you don't intend to reinstall Windows often, I would just take the time to go through these settings manually instead to be on the safe side...
It looks like they're all registry modifications, yes.