Turn Cortana® On / Off - HTC One® (M8) for Windows®

  1. From the Start screen, swipe left to display the Apps list.
    Note Alternatively, tap All apps All apps icon (located in the lower-right, may require scrolling).
  2. Tap Settings.
  3. Tap Cortana.
  4. Tap the Cortana switch to turn on Switch On icon or off Switch Off icon.
    Note A device restart is required if turning Cortana off.
  5. If prompted with 'Ready to get started?', tap yes.