Some have no other way - they have to pay. Special. If the computer on which all information for work is stored is infected. The guide will not understand your explanations that the computer is infected. They need the result
Paying is not a solution as mentioned before. I understand that it might feel like you have no other option, but look at it from this point -> If you have been willing to pay once, why wouldn't you pay for a second time? Perhaps for a third time? Those that are desperate enough and end up paying, have important files to safe, and exactly that puts them in a very easy to extort position.