How to Fix USB Device Not Recognised

The "USB Device Not Recognised" error in Windows is very common and usually quick to fix without any technical knowledge.

Likely causes

• USB driver issue
• Faulty or underpowered USB port
• Corrupted USB device
• Power management settings disabling USB
• Outdated Windows

Step-by-step fix

1. 1
   Try a different USB port

   Plug the device into a different port on your computer. Avoid USB hubs — plug directly into the machine.

2. 2
   Restart your computer with the device unplugged

   Shut down fully, unplug the USB device, restart, then plug it back in after Windows has loaded.

3. 3
   Disable USB selective suspend

   Search "Power plan" → Change plan settings → Change advanced power settings → USB settings → USB selective suspend → Disabled.

4. 4
   Update USB drivers

   Open Device Manager → Universal Serial Bus controllers → right-click each item and select "Update driver".

5. 5
   Uninstall the unknown device entry

   In Device Manager look for the device with a yellow warning icon. Right-click → Uninstall. Unplug the USB device, wait 30 seconds, plug back in.

Frequently asked questions

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