Remove the Windows8.1 Update power button small coup

Microsoft officially launched the spring update version of win8.1 update, showing users a number of new features, although these new features give users a lot of convenience, such as the new start screen power button, eliminating the need for users Looking around for trouble with the button switch, but the power button is sent in the most easy-to-operate place. It is easy to use the power button to cause the system to shut down. How can the user remove the update button of windows8.1 update?
Remove the Windows 8.1 Update power button small trick:

Test platform: Win8.1 2014 Update RTM branch (16610) version
(due to the registry modification, the average user is cautious)
1, backup registry, such as Rubik's Cube Master "Backup Registry" function

2, under the traditional desktop, right click on the start button, select "Run", enter regedit, open the registry Editor