HTC One (M8) for Windows
Create a Device Password - HTC One (M8) for Windows
Create a Device Password - HTC One® (M8) for Windows®
From the Start screen, swipe left to display the Apps list.
(located in the lower-right; may require scrolling to the bottom of the Start screen).
to turn on
Enter a password into the following fields:
The password must be from 4 to 16 digits in length.
(located in the lower-left)
Unlock the Device
Change the Device Password
Turn Off the Device Password