Before, when Windows wasn't that complicated, we needed to manually disable the network connection to get a longer battery time. Today, PCS support a growing number of wireless networks, with the exception of Wi-Fi and Bluetooth connectivity and mobile broadband connections. The function of flight mode is more prominent.
Flight mode in Windows 8 came into being, you can see clearly that all wireless network types are disabled with one click, and you can turn off operator broadband, Wi-Fi, and Bluetooth at the same time.
You can see the flight mode button by using the shortcut key combination windows+i or by opening the network panel directly to the "settings" of the charms Super Bar, and clicking to enable it.
When turned on, the flight mode icon is visible in the taskbar and in the PC Setup Panel.
To remind you that unlike Windows Phone, the flight mode in Windows 8 is a global setting, and you can't turn on Wi-Fi or Bluetooth individually without opening the mode.