The computer does not recognize the USB what is going on

1, the computer USB interface has problems.

First, the device to the other computer to verify, if you can connect, it is a USB interface failure. The interface failure is likely to be the front of the USB cable plus and minus, it is possible that the front interface voltage is insufficient, plug it into the host USB back interface to try.

2, the USB device is broken.

We can plug it into other computers to see if we can identify, if not, that the problem is in the device itself, can only change. If you have just bought, you can eliminate this reason.

3, the problem of driving.

If it is not a hardware cause, it may be a driver problem that can be driven by a software upgrade such as a Driver wizard.

4, the USB device is not normal power.

Click Device Manager in the computer right-click menu, then expand Universal Serial Bus controller, remove all USB related options, then unplug the USB device and plug it in, reinstall the driver, as shown in the following illustration:

about how to do not recognize the USB device, the small series has been through hardware and software to share with you the solution, I hope you will encounter the problem of the USB device can be solved.