'prt sc'
and by combining the keys 'alt+prt sc'
you can take a screenshot of an active window only. When you press this key to capture screen, Windows will save the screenshot to the clipboard so you can paste it anywhere in drawing or image editing tool like Windows built-in MSPaint.'Windows+prt sc'
and the screen shot will be saved as a .png format in Screenshots folder available in the Pictures folder. You can access this folder by opening File Explorer and then select Pictures from left-panel. A quick way to access Pictures folder is just press 'Win+R'
to open Run window and then type Pictures and hit Enter, here you will see Screenshots folder. Unfortunately, you can’t combine alt key to take active window screenshot.'Auto Screen Capture'
and run it. When you see this utility screen, the interface split up into a couple of different sections. At top-left side calendar and at the bottom of calendar you will see settings sections. At the right-side, you have previews of each external display attached to the computer; You can capture screenshot from maximum four displays.