What if the USB device in the Win7 computer can't be recognized?

When it comes to Win7 flagship system USB devices, perhaps a lot of people first thought is such as u disk, mobile hard disk type of equipment, but in fact, we Win7 flagship system USB devices are very diverse, and many are our daily operation of the computer need to use. For example, we are familiar with the mouse and keyboard, there is the form of USB excuses, as well as our external printers, external drivers, and so on, these are implemented by inserting a USB interface. But recently, users who use the Win7 flagship computer say they are being prompted not to recognize the USB device in the Win7 flagship computer, so how do we solve this problem? The following, small series on the detailed introduction of it!

The first case: insufficient power supply for USB devices

Many USB devices for the power supply are very stringent requirements, if the current output can not meet the requirements of USB devices, it will appear similar unrecognized situation, you may wish to change a USB interface to try to see whether it can be identified.

Second case: USB interface Damage

In this case, we can also remove the fault by changing the USB interface.

In the third case: the system is incompatible with the motherboard

This failure we can install the motherboard-specific USB2.0 driver patch, and then refresh the BIOS settings, so that the system and the motherboard can generally be compatible.