door windows on 1993 BMW 318i

i 've got a 93 bmw 318i none of my windows are working ..can all the switches be faulty or is there something other wise thats wronrg...help.............

Asked by for the 1993 BMW 318i
Yes, the master switch could be bad. I'd check the fuses first though..

Zee
i did check the fuse it's good.now is the master switch what test can i do to see if it's faulty.........