I had to do this for my mother and Aunt as they both typed in large caps which in fact was hard for them to read. But by increasing the font size they were able to read everything and found it much easier to read then the all CAPS.
Another thought is you can go to Start, scroll up to setting, click on control panel, open Display, go to settings and increase your a dest area that increases all your icons and fonts.
Just a few thoughts.
JoAnne