We’ve mentioned how to take screenshots in Windows 10. You can now take screenshots while browsing with Microsoft Edge, with Edge’s Web capture feature.
(Note: This allows you to take an image copy of the whole page, including the parts not showing on your screen.)
Here are 3 ways to access Web capture
1. Via the Settings
While using Edge, click on the Settings icon (the 3 dots) in the top-right corner, or press the keyboard shortcut Alt+F to open the Settings menu.
In the Settings menu list of options, you will see this icon 
listed as Web capture.
Clicking on the icon (in your menu) opens the Web capture (screenshot) tool. Go to next step.
2. Right-click menu
Right-clicking on a web page opens up the right-click context menu, where you will also see the same Web capture option.
Click on Web capture (in your menu) to open the Web capture tool. Proceed to the next step.
3. Keyboard shortcut
If you prefer using one of Edge’s keyboard shortcuts, you can access Web capture by pressing Ctrl+Shift+S.
Next step:
Whichever way you choose to, after selecting Web capture, a small window will pop up with 2 options: Free select and Full page.
Free select allows you to select a portion of the page, and the full page option will take a picture of everything on your screen, including an image of the whole vertical webpage.
Clicking Copy will save the screenshot, or you can choose to add notes to draw a note on the screenshot.
After adding a note, you can share it, copy it, or save it. The saved file will go to the Download folder you have set in Edge. For most people, that will be the default C:\Users\YourName\Downloads.
If you think you might often take screenshots with Microsoft Edge, why not right-click the Web capture icon and choose Show in toolbar.
To remove it, simply right-click it again and choose Hide from toolbar.
Be sure to use the search box here at The Computer Mouse for other Microsoft Edge Tips.