I recently upgraded my PC and have built the old components into an old casing. It's a big tower and not very pretty but it's running Windows 10. It's a GA-H61M-S2PV motherboard with Intel Pentium G630 2.7GHz CPU, 6GB RAM, 500GB HDD. Video output is VGA or DVI. I'll put a clean install of Win 10 Pro on it but you'll need to activate it to use all the features (codes cost less than £4 BTW). Please say when you can collect and I don't respond to messages that just say 'can I have it' or similar :)

Windows 10 desktop PC (Yate BS37)