BTW, I came across three more computers at a different location in the same company. The same or similar models. Makes me wonder if there's a driver issue. I tried calling Dell, but all they would say was that "these computers are not compatible with Windows 10." Yeah, well someone should have told Microsoft that when they forced the upgrade. How is the average user supposed to know? I really should have spent a week going around installing Never10 on all my clients' computers.