If you're on Windows, you can open the Start Menu and type SNIP.
A program called Snipping Tool will pop up. Open it, click New, and you'll have cross hairs. Put the cross hairs in one corner of what you want to screenshot, press and hold left button on mouse and then drag it around the total area you want to screenshot.
YouTube tutorial which explains additional features - https://youtu.be/fWNA2js9JGc
If you're on Windows, you can open the Start Menu and type SNIP.
A program called Snipping Tool will pop up. Open it, click New, and you'll have cross hairs. Put the cross hairs in one corner of what you want to screenshot, press and hold left button on mouse and then drag it around the total area you want to screenshot.
YouTube tutorial - https://youtu.be/fWNA2js9JGc