The scale solution works for exploring Hard Drives and folders, also altering text the list size. However for reading System Dialog box text a non starter. There appears no way of resizing the text. On my old Lenovo in the scrap yard that had Win 10 Pro installed I never had that problem. I sit there with a Hand Held Magnifying Glass to read the text which appears to be 8 font. It should be a minimum of 10 or 11 font size.
Recently, I downloaded an opensource program, Alternate Font Sizer. It lets you resize the System Font. To install it, you have to override Windows Defender.
http://www.alternate-tools.com/pages/c_fontsizer.php?lang=ENG&progvers=1.600