1. Taking a screenshot of the entire screen
Press the Print Screen key. This will immediately take a screenshot of your whole display (including any extended desktops you have). The screenshot is added to your clipboard, allowing you to paste it elsewhere, and automatically saved to your Screenshots folder.

2. Taking a screenshot of an active Window
To capture just your active window, press Alt + Print Screen instead. This will take a screenshot of just the active window – so, if you’ve got several windows open, be sure to select the specific window you want to capture to make it active. Like with the full screen screenshot, this is added to your clipboard as well as automatically saved to your Screenshots folder.

3. Paste the capture screenshot where you want it.
Once you take a screenshot, that screenshot is added to your clipboard, allowing you to quickly paste it into some applications. You can paste it into an image editor, like Paint 3D, to edit and save it. Or, you can share it with a friend or colleague by pasting the image into a chat or email.

That’s all there is to it if you just need a way to quickly share what’s on your screen. However, there are more advanced ways to screen capture on PC.