Do you your electric windows stop working as soon as you turn off the ignition, if so it could be the 20amp door fuse where your accelarator pedal is.

This controls the door ecu, if its blown it will stop the central locking and windows working once the ignition is off.

The door ecu is in a yellow box just above your right foot to the right if you need to access it, either that or take the panel off under the steering wheel,

(about 4 screws) take the air pipe off for the vent, 1 screw, then you can see the door ecu.
