This is due to the Font Display Settings on your machine. To change your settings:

Windows 7:
  1. Right-click the desktop and select Personalize
  2. On the Personalization screen, select Display in the bottom left corner
  3. Notice the options
  • Smaller – 100%
  • Medium – 125%
  • Larger – 150%
  • Custom
  1. Select either the Smaller or Medium option or enter a custom value of 125% or less (user will be prompted to logoff before the change takes affect)
Windows 10:
  1. Right-click Desktop and select Display Settings
  2. Under Scale and layout > "Change the size of text, apps, and other items," select your desired percentage