Usb is showing problem of i/o driver how to solve it

Murtaza qasmi

Honorable
Jan 30, 2013
1
0
10,510
my usb is showing the problem of i/o problem for the last 4,5 days.i don't know how this problem is accrued with usb. plz any one having the solution of this problem??i have my very important data in this usb flash drive.