Dell UP2715K Monitor - Manual (Page 61)

Setting Up Your Monitor Display  61
Font Size Adjustment Guide
At resolution 5120x2880 UP2715K is at 218PPI. It is recommended to enlarge
the desktop icon for easy viewing. Please follow below guide to change font
size to 150% or higher.
Windows 7 & 8
Select “Larger - 150%”
Control Panel > Appearance and Personalization > Display
Windows 8.1
Select “Larger, up to 200%”
Control Panel > Appearance and Personalization > Display