In Windows 8 computer, when you use Ctrl+Alt+Del to open the Windows Security dialog box, you will find that there is no Log off in the options. Instead, the Sign out option is added, as shown in the picture below. As a matter of fact, they are different names of the same operation. Therefore, if you want to remove Sign out from the Ctrl+Alt+Del options, you can enable the "Remove Logoff" setting in the Local Group Policy Editor. And this article will illustrate the elaborate steps for your better reference.
Video guide on how to remove Sign out from Ctrl+Alt+Del options in Windows 8:
Step 1: Enter Local Group Policy Editor.
Step 2: Seek out and open Remove Logoff setting.
It can be found according to the path of User Configuration/Administrative Templates/System/Ctrl+Alt+Del Options/Remove Logoff.
Step 3: Make sure this setting is enabled.
As the Remove Logoff window appears, select Enabled and click OK.
Step 4: Exit the Local Group Policy Editor.
Tap the red close button on the top right corner to exit it.
Then, in the Ctrl+Alt+Del options, you will discover that the Sign out item has been removed.
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