I decided on cleaning my laptop fans today, which I’ve been procrastinating for about a year now because of this one screw. But I just can’t seem to open this with my screwdriver, since whatever I did back when I last opened it it’s nearly circular now. Is there a way to unscrew this?
The rubber band trick is great, and very low effort/cost. I want to say, though, that it can take substantially more force than it looks like it should on small screws like this. You also don’t have to use something shaped for the original driver of the screw. With the rubber to help it, a round cylinder a little smaller than the head of the screw can work very well.