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.
1] Click Start, type gpedit.msc in the Start Search box, and then press ENTER.
It will launch GPEdit.msc (the Local Group Policy Editor)
2] Browse to Computer Configuration > Administrative Templates > Control Panel > Personalization.
2] Browse to Computer Configuration > Administrative Templates > Control Panel > Personalization.
3] Double click "Do not display the lock screen", select Enabled and
click OK.
Restart and the lock screen will have gone.
