These are all good solutions. If you want to try something that offers much more capability than what Windows offers, check out
Greenshot
I frequently use "Capture region" and then send it to the built-in Image Editor for annotation and further editing as needed. It also allows you to save the captured image in a variety of formats (jpg, png, bmp, tiff, gif, ico, etc.). If the PC can display it, Greenshot can capture, save, or print it.