Open the screen you would like to record.
Pressing these keys together will open the Game Bar menu.
You may be asked if you are recording a game. Just check the box next to "Yes, this is a game"
You may also be asked to log in. You can use the same credentials you use to log in to your computer, or other Windows account information (Like an outlook email address, or Xbox log in).
Use the Camera to take a still screen shot
Use the Red Circle to start recording your screen.
If you want to record your voice when doing a screen capture, make sure to check the Record Mic box.
The default location for your video recordings should be This PC > Videos > Captures
From here, us can use your preferred video editing tool to make changes.