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?
It looks like you probably don’t have enough edge for this, but a simple vise grip could work.
This was my first thought also. The defcon 2 solution. If that doesn’t work, the next step is to drill it out.