Windows 8 tricks :Disable the lock screen

If you like your PC to boot just as fast as possible then the new Windows 8 lock screen may not appeal. Don't worry, though, if you'd like to ditch this then it only takes a moment.

Launch GPEdit.msc (the Local Group Policy Editor) and browse to Computer Configuration > Administrative Templates > Control Panel > Personalisation. 

Double-click "Do not display the lock screen", select Enabled and click OK

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Restart and the lock screen will have gone.