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?
Get one of these cheap kits with multiple bits and try the largest Philips bit. Not necessarily the one pictured as this is more expensive than most: