2.Prt sc: screenshot of the whole page, pasted by Ctrl+V, and cannot be edited or modified directly.
3.Win+Prt sc: The screenshot of the whole page cannot be edited directly, and it is automatically saved in this PC- Picture-Screenshot.
4.Alt+Prt sc: Take a screenshot of the opened window and paste it with CTRL+V. You can't edit or modify it directly.
If I open the file explorer on the desktop, press Alt+ Prt to get a screenshot of the explorer interface window.