Show hidden and unplugged devices in device manager

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Sometimes you install a new driver for a device that makes this device totally unuseable. In some cases it even disapears in Device Manager.

Here is what you do to show hidden devices:

  • Open Device Manager.
  • Click Show hidden devices on the View menu.

Devices that you install that are not connected to the computer are not displayed in Device Manager, even when you click Show hidden devices.

To see them do the following:

  • Close Device Manager if it is running.
  • Open a Command Prompt (CMD).
  • Type the following command, and then press ENTER:
set devmgr_show_nonpresent_devices=1
  • Open Device Manager by typing the following command:
start devmgmt.msc

It is important to start Device Manager this way, because when you close the command prompt window, Window clears the devmgr_show_nonpresent_devices=1 variable.

In this Device Manager you now see all devices!

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