No problem upgrading to WIN 10 pro, had WIN 7 Ultimate. Activated fine even though a Daz special. However, trying to run an Intel utility querying the system for identity of chip I was not able to run the software. Had no administrator rights. So I googled and googled and it is very confusing . Did not find anything to work. I feel I should be able to do anything on my computer, can always dead load it. As it was, I got frustrated and went back to 7 where I can do anything after having taken ownership. That is where I will stay unless somebody lays it out in understandable jargon. It is always fun to tear it down and then rebuild it. No wonder my wife will not let me touch her computers. Thanks for looking.