Capture a window

The UI may vary depending on the system version.

Use the screenshot tool provided by Microsoft to take a screenshot
1. Enter "snipping tool" in the search box on the taskbar and open Snipping Tool.
2. Click New. Rectangle Snip is used by default. You can click to select other screenshot modes, such as Window Snip, Full-screen Snip, and Polygon Snip. (Windows 10: Click New. Rectangle Snip is used by default. You can click Mode to select other screenshot modes, such as Window Snip, Full-screen Snip, and Free-form Snip.)
3. Drag the cursor to select the area to be captured and take a screenshot. The screenshot will be displayed on the screenshot tool page. You can paste it in apps such as Paint.
4. To automatically save screenshots, click in the upper right corner, select Settings, and enable Save screenshots automatically. The screenshots will be automatically saved in C:\Users\Username\Pictures\Screenshots. (Windows 10: Click Save screenshot, follow the onscreen instructions to select a path for saving the screenshot, and click Save.)
You can use a third-party screenshot tool (such as QQ) to take a screenshot by opening any QQ chat window and click the scissors icon.
Press + Shift + S and select the area to be captured and take a screenshot. The screenshot is automatically saved to the clipboard. Open any software to which you can paste the screenshot (such as WeChat chat box, Word, or Excel), and press Ctrl + V to paste the screenshot.

If no screenshot is taken after you press PrtSc or Win + PrtSc, you may have set the PrtSc key to Function key mode. Press Fn to switch the PrtSc key to Hotkey mode and try again.

Capture the entire screen

Press PrtSc to take a screenshot of the entire screen. After the screenshot is taken, you can copy it to other apps, such as Paint.
Press + PrtSc to take a screenshot of the entire screen. You can then go to This PC > Pictures > Screenshots to view your screenshot. You can also paste the screenshot in apps such as Paint.

Take a scrolling screenshot

You can use some third-party tools to take scrolling screenshots, such as the Snagit screenshot tool. You can download a screenshot tool compatible with your computer's operating system from the app store. After the installation, take scrolling screenshots according to the operation guide of the tool.
Use browser plug-ins or extensions: If you want to take a scrolling screenshot of a web page in a browser such as Chrome and Firefox, you can try screenshot plug-ins or extensions, including AwesomeScreenshot, Fireshot, and NimbusScreenshot.

To learn more:

Taking screenshots using Huawei PC Manager