I need to know why my keyboard has some keys not working
I have an iMac 2013-14 and although it is classed as 'old' now I still use it, it has started making a whirring noise, and the keyboard has now decided that some keys should not work (space bar, back space mainly). Any advice on what is the cause and what I can do without having to book into Apple to be looked at?
iMac 27″, macOS 10.15
