For the electric windows, I've had endless problems myself, some still unsolved, however, the only blatantly obvious thing I can suggest is something stupid like, you accidently pressed the circuit breaker button beneath the steering wheel to the left, which disables the electric windows.
And for the dash lights, mine didnt come on aswell as my headlights, so it was just a case of changing the fuse; (the fuse for interior lights etc. will be identified in the owner's handbook) so you could try that..........