How can I remove a tight or stripped screw from a laptop?

I was taking my laptop apart. One of the screws was very tight and I accidentally stripped the screw. How can I remove the stripped screw?

I found that it’s easier to remove a tight screw if you heat it for a few seconds with a soldering gun. The heat will soften securing glue on the screw thread and make it easier to remove.

If the screw has been stripped, you can try removing it with a screw extractor.