The car is a Nissan Almera (N15) -99 with a 1.6 L gasoline engine. It has been standing still for over a year and some rust has developed on the brake rotors.

The car has been standing under a roof but since it wasn't in a completely closed garage the rear of the vehicle might have gotten wet during the rain. That's the only way I can explain why the rear brake rotors have accumulated more rust than the ones in the front. The car does not have drum brakes. I tried driving in and out of the parking space a few times and it seems like the brakes are stuck. Driving back and forth a few times somewhat alleviated the problem but the brakes are still somewhat stuck. I can't drive the car on the road for now since it's not registered.

So my question is whether pulling the handbrake while driving would help getting rid of the rust. I'm not sure how exactly the handbrake works - does it simply brake only with the rear tires?