Changing Settings for an Installed Device

By default, Device Manager displays information about all currently installed and connected Plug and Play devices. To view devices that use non–Plug and Play drivers, as well as previously installed devices that are not currently connected, you need to tweak Device Manager slightly—for example:

  • To view non–Plug and Play devices, open Device Manager and choose Show Hidden Devices from the View menu. In the default Devices By Type view, the formerly hidden devices appear under the Non–Plug And Play Drivers branch.

  • To view devices that were once installed but are no longer attached to the computer, open a Command Prompt window using the Run As Administrator option and enter the command SET DEVMGR_SHOW_NONPRESENT_DEVICES=1 ...

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