why my windows will not go up or down , sometime almost evry day on 2002 Ford Explorer

some times i can not get the windows on both side of the ttuck to go

up or down email betonwill@yahoo..com

Asked by for the 2002 Ford Explorer
When they fail, do they fail at the same time? And then do they start working again together?

I would focus my attention on the master window switch on the drivers door. However, you could also have coincidental failure of window motors on various doors. A circuit test is in order to find out if you have power and ground going to the motors when the failure occurs.