You just click "control" and "+" to increase the size or "-" to decrease it!
It helps me, as my focus is awful and after hours of reading small print, my eyes feel like they are popping out!
You can also hold ctrl and roll the mouse wheel back and forth to adjust text size.
It's weird. Someone on here, told me to increase the text size with the ctrl and mouse...and I was doing that.
Wellll, one of my plump cats rolled over onto my keyboard AS I was doing that, and it remained teeny tiny with the ctrl mouse not working! I couldn't figure out what had happened, so the "new" discovery for me, the "ctrl" +\-, reset it for me and now I can use the ctrl mouse again, too!
Have no idea why...or what Ms. Plumpie did, when she rolled on my keyboard...but all it well again! lol