How to Remove Ghost Display on Windows

Sometimes, a second screen may still appear in your Windows display settings even though Duet is no longer connected to your PC. This can happen if Duet Display didn’t shut down properly or if your Windows PC was turned off while Duet was still active.

To prevent this from happening, you can disable Fast Startup in Windows by following these steps:

Windows 10:

  • Type and search [Power & sleep settings] in the Windows search bar, and then click [Open].
  • Click [Additional power settings].
  • Click [Choose what the power button does] on the left side.
  • If the fast startup option is grayed out in Shutdown settings, please click [Change settings that are currently unavailable].
  • Unselect [Turn on fast startup], and then select [Save changes], your device will disable the Fast Startup feature in Windows.

Windows 11:

  • Type and search [Choose a power plan] in the Windows search bar, and then click [Open].
  • Click [Choose what the power button does].
  • If the fast startup option is grayed out in Shutdown settings, please click [Change settings that are currently unavailable].
  • Unselect [Turn on fast startup], and then click [Save changes], your device will disable the Fast Startup feature in Windows.

As an alternative, simply starting the Duet Display for Windows app should remove any inactive Duet displays from your Windows PC.

If you encounter any issues, please contact Duet Display Support at team@duetdisplay.com for assistance.

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