How to keep the screws in the holes on the bottom of my laptop?

I’ve had my laptop for a few months, and for a month or so, a couple of the screws in the bottom have been falling out every so often. I’ve managed to find them and get them back in, but I’m worried they’ll fall out and I won’t be able to one of these days.
My dad put clear nail polish on one and screwed it in before the polish dried, but it fell out a few weeks later.

Any ideas? I’m about ready to get some durable tape and tape over all the holes.