Windows 10 (and maybe 8 & 7):
1- Right-click on the desktop => choose Display Settings
2- “Change the size of text, apps, and other items.

That makes Unity’s fonts and UI bigger
Windows 10 (and maybe 8 & 7):
1- Right-click on the desktop => choose Display Settings
2- “Change the size of text, apps, and other items.
That makes Unity’s fonts and UI bigger