Moving the user directory isn't exactly how I do it. What I do is move the directories that windows uses in libraries. Example, setup a Photos dir on your storage drive. Right click the photos library, add that dir and remove the others that are listed. Do the same for docs, etc... I usually do this to make reloading easier, avoiding having to copy stuff over, or having to restore from backup (which I don't have a backup solution in place right now !)