On a Windows device there are a couple of options:
To Save Your Screenshot as a File
Press the “Windows logo key + PrtScn.” If you’re using a tablet, press the “Windows logo button + volume down button.” On some laptops and other devices, you may need to press the “Windows logo key + Ctrl + PrtScn” or “Windows logo key + Fn + PrtScn” keys instead. Test these options on your device.
The screenshot appear as a file in a folder entitled “Screenshots”, inside your default “Pictures” folder. The screenshot is automatically labeled with a number.
Take More Flexible Screenshots with Snipping Tool
The Snipping tool has been a part of the Windows for long time. This tool was first included in Windows Vista, and never got any new features apart from few bug fixes. Snipping tool can take screenshots of an open window, rectangular area, a free-form area, or the entire screen. You can annotate your snips with different colored pens or a highlighter, save it as an image, or email it to a friend.
In Windows 10, Snipping Tool has a new “Delay” option, which will allow you to capture screenshots pop-up menus and tooltips. Open the Snipping Tool app and click Delay. From the drop-down list, click on the number of seconds you’d like to wait until your screenshot is taken.
Now choose the type of snip you want to make by clicking the arrow next to “New.” You can choose from one of four types of snip: free-form, rectangular, window, and full-screen.
Unlike a regular snip, the screen will not immediately fade out. Instead, you will have between 1–5 seconds, depending on the delay you chose, to set up your screenshots. You can use this time to open that pop-up menu or tooltip you want to capture. Once your seconds have passed, the screen will freeze and fade out so you can create your snip. If you choose window or full-screen, it will just capture the snip immediately.
On a Mac device try these options: