You can use PowerToys to remap the Scroll Lock key and then use it to launch any program on Windows 11/10. We show you how to do this.

If the Caps Lock key functionality is reversed, you can reset the Caps lock key using Microsoft Word. Here are some other working fixes that will help.

Again, use the zigzag pattern to spray your keyboard with the compressed air. Start at the top-right key -- this varies, depending on which MacBook model you're using.