Help with noise from discs

[Jeffrey4670]

Hi, A noise from my rear disc brake is driving me nuts! Constant wirring noise, but if I clean the metal disc it helps, but it returns. I have noticed that Halfords have a disc brake cleaner, no you think this will help? Was in this week for first 6 week free service, but still no better. Thanks

 

[Cubist]

You need to check the pads are in properly, and that the caliper is centred. What sort of brake is it?