I've been using System Font Size Changer to make the fonts in the UI components larger and readable. The latest Win10 update overwrote it so I had to rerun the program. It still appears that Win10 gives you no way to adjust font sizes! For instance, the size of icon text on your desktop, or the title bar text size. The default size is stupidly small, and there doesn't seem to be a way to change it without scaling your entire screen or using this 3rd party hack.