In many circumstances, hard reset and factory reset are used interchangeably.
To use the on-screen menu option:
Press theGuidebutton.
Navigate toProfile & system>Power.
When the console shuts off, release thepower button.
Unplug the console from power.
Wait at least 10 seconds.
Plug the console back in.
Turn the console on.
Anything that is stored on your Xbox, however, will be removed.
Navigate toSystem>Console info.
Your console will immediately reset itself as soon as you select one of these options.
There is no confirmation, and there is no turning back.