At home we have my big Windows 7 Pro PC that has a lot of drives and shared data, an old XP PC that's not really used, and an 8.1 consumer level (not 8.1 pro) laptop. It's a pain trying to share folders with the laptop because the users are completely separate.
Is there a way to have a centralised user management system or domain controller for a home with multiple PCs? Any alternate ideas?