Users of the Win8.1 system know that in the Metro interface, clicking on the user's avatar can see that there is a lock screen option. If a day suddenly opens and the option is missing (as shown below), what should I do? Xiaobian teaches you an effective method.
Procedure:
1, according to WIN + X, and then proceeds to the control panel;
2, and then click the & ldquo; & rdquo and security systems ;(Note that the view is category);
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