Just disconnected and removed a radiator in a room in order to decorate it, now the boiler makes kind of whisling noise when we open the hot water tap. Any idea as why this is the case - the bar pressure is OK.
Thanks
It's good idea to wipe clean the first disk which has 'C D E' partions and partition it again to have 50gb for OS. Once you have installed Windows 7 or 8 you can then partion the rest as you like. Because it's second hand PC try making it a clean slate.
Regards