“USB Device Not Recognized” – Problem Fixed

You get a "USBdevice not recognized" error message when you plug in a USB mouse, keyboard or other USB device? I love and have 5 USB ports on my computer so I can get my mouse, keyboard, camera, phone and printer to make it all at once!

However, last weekend, my computer stopped recognizing my USB devices! The strange thing was that the USB ports were not bad, because all my devices were still the power to them. I could recharge my mobile phone even without a problem!

So I started with the normal attachment methods, including removing the drivers for my devices and reinstalling them. That did not work! I then tried System Restore to think that maybe I had installed something and it causes a conflict with the USB system drivers. That did not work!

I read online that this problem I should go to Device Manager and remove all devices under USB Controllers. The computer restarts, the USB drivers again, but the problem is not gone!

You may also see in Device Manager that the device shows up as an “Unknown Device”.

So how did I finally solve the problem? Well, apparently it's a super simple solution! No need to edit the registry, delete drivers or something similar.

Simply disconnect the equipment from Power SUPPLY. Yes that's it! Note that this does not mean simply turning off the computer because modern computers are not really off when you press the power button and the motherboard is receiving power.

Firstly, to explain, the motherboard is where all the hardware of the computer, including USB ports. Sometimes the motherboard to be "restart" because anything can go wrong, that is all your USB ports suddenly stop working. The small microprocessor on the motherboard will again the drivers and the USB ports to get back to recognizing all devices!

So first off the computer using the Shut Down or by pressing the power button, then remove plug from outlet. Let it sit for about a minute and then reconnect the power.
I think it will solve the “USB device not recognized” Windows error!