Why does the usb ports in my acer aspire 5610z doesn\'t work ?

Sachith

Honorable
Nov 18, 2012
1
0
10,510
There are 2 usb ports in back and 2 in side. all 4 of them are not working. Ther are all enabled. And the ports are in good shape. nothing happened when i shutting it down day before yesterday. What should i do????