To take a screenshot on your windows computer you use the keyboard and press the CTRL and PrtScr key at the same time.
Then that takes a screenshot of your computers screen and then you can open up the program paint and paste the screenshot into the paint program and then edit and save the image.
You can then use another image editor and edit and crop the image you took as a screenshot.
It's just about the same to take a screenshot in Windows 10 as it is in other versions of Windows.
Just use the CTRL and PrtScr key to take the screenshot and then paste it into the windows paint program.