You might also like: How to Enable USB Selective Suspend in Windows 10 Method 7: Use Windows 10 USB Troubleshooter Keep in mind that we are not only talking about just turning off your computer using the power because most of the modern computers these days don’t actually turn off completely and the motherboard still gets the power supply. Yes, you heard correct! This seems a very simple thing to do but it’s pretty effective. Here are some of the very simple and genuine solutions which might help you in getting rid of the issue of USB device not recognized in Windows 10 PC: Method 1: Unplug Your Computer from the Power Supplyīefore doing anything, you need to try an extremely simple solution and that is unplugging your computer from the power supply. Undoubtedly, receiving “USB Device not recognized” error message when you try to access a USB external hard drive is really a pretty annoying situation because it completely prevents you from accessing any file or documents available on that drive. How to Fix USB Device Not Recognized in Windows 10