Before my computer died (due to hardware incompatibility), I used XP Home edition and so does my husband at the moment and we have had not one single problem. When my new computer is fixed, I will be going back to XP Home edition. :) My poser worked fine on it with no problems at all, but then I only had poser installed for aobut 2 or so weeks before my computer died and I was still in the learning processes of poser.