Experts solve the xp system USB instability failure has a trick

There are many USB interfaces on the computer, this is for the system to be able to connect additional devices. In xp, the system defaults to the USB power-saving mode, which causes the USB interface to be insufficiently powered, causing USB instability and intermittent failure. Regarding this USB failure, it is easy to solve by turning off the USB power saving mode.
Operation:
Right-click "My Computer" to select "Properties", open the "System Properties" dialog box, switch to the "Hardware" tab, open “Device Management "Double-click "Universal Serial Bus Controller", you will see several "USB Root Hub", double-click any one, open the "USB Root Hub Properties" dialog box, switch to "Power" Management & rdquo; tab, remove the "Allow computer to turn off this device to save power" check box, click & ldquo; OK & rdquo; return, in turn modify the properties of each USB Root Hub and restart the computer, USB device It will be able to resume stable operation.
Through the steps described above, we can clearly understand the root cause of USB instability. In fact, only the xp system starts the USB power saving mode in order to realize energy-saving operation. The user only needs to close this default program in the system. After that, the USB device can be restored to normal and work smoothly.