Users that have poor eyesight or high-resolution screens, such as a 4K monitors, generally have scaling enabled by setting the DPI (Dots Per Inch) on the client machine to greater than 100 percent. With the Display Scaling feature, remote desktops and applications support the client machine's scaling setting and appear normal-sized rather than very small.

Horizon Client saves the display scaling setting for each remote desktop separately. For remote applications, the display scaling setting applies to all remote applications that are available to the currently logged-in user. The display scaling setting appears, even if the DPI setting is 100 percent on the client machine.

You can hide the display scaling setting by enabling the Horizon Client Locked Guest Size group policy setting. Enabling the Locked Guest Size group policy setting does not disable the DPI Synchronization feature. To disable the DPI Synchronization feature, a Horizon administrator must disable the DPI Synchronization group policy setting. For more information, see Using DPI Synchronization.

In a multiple-monitor setup, using display scaling does not affect the number of monitors and the maximum resolutions that Horizon Client supports. When display scaling is allowed and in effect, scaling is based on the DPI setting of the primary monitor.

This procedure describes how to enable the Display Scaling feature before you connect to a remote desktop or application. You can enable the Display Scaling feature after you connect to a remote desktop by selecting Options > Allow Display Scaling.


  1. Start Horizon Client and connect to a server.
  2. In the desktop and application selection window, right-click the remote desktop or application and select Settings.
  3. Select the Allow display scaling check box.
  4. Click Apply to save your changes.
  5. Click OK to close the dialog box.