You can press the Alt + Tab or Ctrl + Alt + Tab keys to switch between open apps and sites in Windows 10.
Starting with Windows 10 build 20161, all tabs open in Microsoft Edge will start appearing in Alt + TAB, not just the active one in each browser window.
If you would prefer fewer tabs or the classic Alt + TAB experience, Microsoft has added some settings for you under Settings > System > Multitasking. You can configure Alt + Tab to only show your last three or five tabs or choose “Open windows only” to turn this feature off completely.
This tutorial will show you how to change what shows when you press ALT+TAB to switch between open apps and sites for your account in Windows 10.