Show all devices in device manager

Registry Hack of the Day #1 for Windows XP

There are some devices that do not appear when you access the Device Manager (Control Panel > System > Hardware > Device Manager), if you don’t want Windows restricting what you see, you will want to implement this simple registry hack.

- Open Regedit
- Browse to
HKEY_LOCAL_MACHINE\
SYSTEM\
CurrentControlSet\
Control\
Session Manager\
Environment
- Once you’ve browsed through all those keys, you will need to create a string value called DEVMGR_SHOW_NONPRESENT_DEVICES
- Give it a value of 1

Note: You should always backup your registry before making any modifications to it. Failure to do so can result in unpleasantness.