How to do not detect the u disk after reloading the win7 system

Analysis:

1, are not equipped with the motherboard USB drive;

2, there may be disabled <;USB Root Hub 

Solution:

1. Install the motherboard USB driver with the driver CD, insert the driver CD into the CD-ROM drive, then the computer will play automatically, then click one button to install Just fine.

2, enable “USB Root Hub”, the specific method is as follows:

1) Right-click "Computer", select "“Device Manager" in the right-click menu bar ;

2) In the “Device Manager” interface, find “Universal Serial Bus Controller”;

3) You will see “USB Root Hub” here. In the disabled state, right click on the “USB Root Hub” and select “Enable” to enable;

4) After enabling, you can see the USB flash drive in the Explorer interface.

More Knowledge Welcome to Windows 7 Tutorials