Computer USB does not respond to the computer USB interface can not be used how to do?

First, verify the USB device is normal

: If the laptop is plugged into the USB device itself, there may be a problem with USB can not use the phenomenon.

Verification Method:

Method One:
Plug the USB device into another computer to see if the computer is available. If this device is not available on other computers, then the laptop problem can be ruled out.

Method Two:
Replace the other USB device into the notebook to see if you can use it. If other USB devices can be used on this computer, you can also troubleshoot laptop problems.

Second, to identify the USB driver

: If you are sure that the USB device is not a problem, then you need to recognize the USB drive again.

Typically, most USB devices can be identified by the WINDOWS7 operating system and installed with their own drivers, but some USB devices have to install the drivers themselves, and the USB device that installs the driver can be recognized correctly in Windows Device Manager , if the device has a question mark or exclamation marks to prove that the device is not recognized correctly, reinstall the device driver:

1. Use the right mouse button click on the desktop "Computer" icon, select "Management."

2. In Computer Management, click on the left "Device Manager."

3. Then click on the "Universal Serial Bus Controller" on the right.

4. All USB devices can be seen at this time, as shown below:

5. Use the right mouse button to click on the USB device to uninstall the USB device.

All uninstall after the restart of the computer, into the system will be recognized after the USB drive, after the drive recognition can be completed.

Third, the manual method installs the driver

: Many devices (such as the bank's U-Shield, the special software of the dog, USB card, etc.) drive is not integrated in the operating system, need to manually install.

Different USB device driver installation method is also different, some devices in the computer will automatically eject the installation interface, directly to the installation can be installed, and some need to contact the device manufacturer to provide driver installation.