Thanks very much for clarifying that. For the record, I did not set the DPI in the Registry; that entry must have been placed there by Windows during installation (I didn't even know how to do it...

I didn't say previously that this is my second Win 10 installation. When I installed it the first time, 125% was displayed in the settings, with the option of moving the slider to other figures (100...

Yes, I can change the DPI on the advanced settings (custom) page. As I said, it defaults to 125 (which, I assume, is where the system thinks it is actually set). I have attached a screenshot...

I know there hasn't been activity for a while on this thread, but I will try posting a question anyway: My move to Win 10 seemed to go well until I took a closer look at the display and saw changes...