In order to save power, by default, Windows switches your USB controllers off when they’re not in use, and switches them back on again when they’re needed. Unfortunately, sometimes this approach doesn’t work as intended, and Windows fails to switch your USB controllers on again. Sometimes, this can be fixed quite simply:ġ) Unplug the power supply and charger plug from your laptopģ) Connect your USB device to the laptop againĤ) Plug the power supply back in Method 3: Check your power management settings If, for some reason, it fails to do this properly, the devices plugged into those USB ports may stop working. Your laptop’s power supply delivers power to your USB ports.

Method 2: Check your power supply (laptop only) If it doesn’t, then you’ve isolated the problem! You just need to buy a replacement. To check if the USB device is faulty, simply unplug it (‘Eject’ it if it’s a USB storage device) and plug it into another computer. So it’s best to rule that possibility out for sure before spending time on more complex troubleshooting. It’s certainly possible that your device just happened to die right at the same time that you upgraded Windows. If the USB device was working before you upgraded to Windows 10, it’s unlikely to be faulty. You may not need to try them all just start at the top of the list and work your way down.ĥ: Check your USB ports Method 1: Check if the device itself is faulty

Note that there are 5 possible solutions here.

Whether it’s a USB mouse, keyboard, pen drive, printer, or some other USB devices altogether, this guide should resolve your problem. If you find one of your USB devices on Windows 10 isn’t working, read on.

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