Show and Delete Hidden Devices

Recently when I was trying to get a sound card to work in our Call Manager, I ran across these tips that helped me from a couple other sites that are definitely worth checking out. These will help you clear out everything listed for sound and multimedia, which can sometimes keep devices you added from working, such as a new sound card.

From Techguy.

To get rid of that unwanted driver, device, or service:

  1. Open the Start menu and choose Run
  2. Type in “cmd” (without the quotes) and click ok.
  3. At the cmd prompt, type in “set devmgr_show_nonpresent_devices=1″ (without the quotes) and press enter. (Note: Nothing seems to happen as you are actually setting an environment variable which is going to help to see hidden devices)
  4. On the next cmd prompt line, type in “devmgmt.msc” (without the quotes) and press enter to launch the Windows Device Manager Console.
  5. In the Device Manager Console, from the “View” menu, select “Show Hidden Devices”.

Now, as you expand the different drivers and devices in device manager you will see not only the items that Windows currently detects as installed on your pc (these are the usual items displayed), but you will also see drivers, devices, and services which have been loaded in the past but were not uninstalled or are not currently started. You can find your offending device, right-click, and choose “uninstall” to remove it from the system completely.

From Computing.net.

  1. Boot to safe mode.
  2. Go into the device manager.
  3. Remove all devices in multimedia/sound.
  4. Reboot to normal mode and allow the devices to reinstall.

Microsoft has some built in devices the device manager such as Microsoft Kernel Audio Mixer that may be damaged.

Those devices can only be seen/removed in safe mode under Windows ME. The problem you are having is usually caused be a corrupt MS Kernel driver or Audio Codec.