How To Fix Windows Error Code 43: Device Not Recognized

This error occurs when a device you have connected to your computer has failed in some way. Usually the solution is quite simple.

FIX #1: Unplug your USB Devices and Restart

  1. Disconnect ALL of your USB devices.
  2. Turn off your computer.
  3. If you’re on a laptop remove the battery and press the power button for ten seconds to remove excess power. If you’re on a desktop unplug it and press the power button for ten seconds.
  4. Wait a minute to be sure.
  5. Put the battery back in (laptop) or plug the computer back in (desktop). Boot it up.
  6. Plug each device in one by one making sure each one works after you plug it in.

If this doesn’t work simply move onto the next fix.


FIX #2: Uninstall/Reinstall the device

Sometimes the driver becomes corrupted and needs to be reinstalled. To do this you’ll go into the Device Manager and uninstall the device and then reinstall it.

  1. Open Device Manager in the Control Panel (you can search for “Device Manager” in the Start Menu or Start Screen.
  2. Find the device causing the problem. For example if the device is an external hard drive then go to “Disk Drives” and find the specific drive.
  3. Right-Click on the device and click Uninstall.
  4. Once the uninstallation process completes unplug the hard device.
  5. Restart your computer.
  6. Plug the device back in.

FIX #3: Run Windows Update

  1. Run Windows Update and install all the updates. Make sure you check for updated drivers as well as the critical updates.
  2. Restart the computer and try the device again.

FIX #4: Install Hotfixes

  1. If on Windows 7 install:
  2. If on Windows 7 install:


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