If you'd actually DEALT with any number of the computer-illiterate, particularly over the age of 40, you'd know that there is no helping them. They know all about computers, dammit, and you're just some inferior git sent to help them make their background images movie files or reformat their hard disks. Don't get all sanctimonious until you know **** about what you're talking about.
And anyway, 99.99999999999% of the stuff they wanna know can be found by reading two pages into the accompanying manual, provided it's not a Microsoft product. If they're so ****ing lazy as to need to waste everyone else's time when the information's available already with a little searching, they get what they deserve.
Anyway...