Instruction
1
In order to enable the "Sleep mode" hover the mouse cursor on an empty space on the desktop and click the right button of the mouse.
2
In the appeared menu select "Properties".
3
In the opened window click on the tab "screen Saver" and press the "Power"button.
4
Then you choose the tab "Sleeping mode" and next to "Allow the use of sleep modeand put a check mark. Click "OK".