Windows Help provides detailed information on how to use Windows easily.
On Desktop, you can press the [F1] key to run [Windows Help and Support].
On the Start screen, select [Charms] > [Settings] > [Help] to display the help of the currently running app.
Some apps may not support help.
Switch to the Desktop mode after clicking the [Desktop tile] in the Start screen. And then, run the [Charms].
Press the [Settings] > [Help] from the Charms to run the [Windows Help and Support].
Press and run the [Help and Tips] tile on the Start screen to get information on the new functions of Windows.