By default, Windows 8 shows Lock Screen at startup, which displays the date ad well as notifications. You have to click the screen before you can get to the logon screen. This seems like something that makes more sense on a tablet PC.
If you are using a desktop or laptop computer, you can disable the
Lock Screen so the computer will boot up directly to logon screen to
choose the user account to log in to Windows 8. Fortunately, you can
disable the Lock Screen from Local Group Policy Editor.
How to Disable Windows 8 Lock Screen?
1. The first thing you need to do is to open the Local Group Policy
Editor by pressing the Windows + R key combination to bring up a Run
box, then type gpedit.msc and hit Enter.
2. Now, expand Administrative Templates settings from Computer Configuration, and then navigate to Control Panel –> Personalization. In main window, you will find Do not display the lock screen policy.
3. Double-click this policy and tick Enabled
checkbox. This will permanently disable Windows 8 Lock Screen. When disabled,
users will see the logon screen when they log off or lock out Windows.
Similarly, you will be taken to logon screen directly, instead of Lock
Screen, at startup.