About my usb broadband with autorun.inf

Hello,

i have a problem with my usb broadband.... i'm very clean person in terms of pc cleaning, i clean all the viruses of my computer. but except of my broadband usb. i found that it has an autorun.inf i can see it clearly i tried all the remedies that has been said to me even typing the "del a rhs the diskname or location and type autorun.inf" but it's not working. please help me...