If there's no "sticky" substance underneath the keys and only dust and small pieces of food, one of the best options would be to use a can of pressurized air, and while you're at it give the fans a shot also, you'd be surprised how much dust can build up in there.

Regards,

Rick.

Hello GraemeW,

Welcome to the Dell Community Forum,

The instructions to remove your keyboard is located in your systems online users guide. Hope that this helps.

Thanks,