Windows 8 Setup may incorrectly set a lower DPI on a high DPI display

Applies to: Windows 8Windows 8 EnterpriseWindows 8 Pro

Symptoms


Consider the following scenario:
  • You have a PC with a high dots per inch (DPI) display. For example, you may have a tablet PC with a smaller display but capable of very high resolutions such as 1920x1080.
  • You install Windows 8 on the PC.

In this scenario, you may expect Windows to choose a higher DPI setting for your display, such as 125% (or 150%). However, instead Windows chooses a lower DPI setting for your display than expected. As a result, the appearance of items in Windows such as icons, tiles and text may not be optimal.

Note: You may also encounter this issue with a new OEM PC with Windows 8 already pre-installed on it.

Cause


In some cases Windows 8 may not correctly identify the display as a high DPI display and instead choose a default lower DPI.

Resolution


To resolve this issue, change the display DPI in the Control Panel Display applet to the desired size.

If you are planning on deploying Windows 8 to PCs with high DPI displays, you can manually set the DPI in the unattend.xml. For more information on setting the DPI in the unattend.xml, please reference the Microsoft TechNet article below:

http://technet.microsoft.com/en-us/library/cc766480(v=ws.10).aspx