Sometimes we feel forced for a critical stop of our PC, when we feel that something wrong is going on.
The ordinary stop needs its? time to write in the memory the needed notice. While, the urgent stop takes another way, much faster. But you might loose those elements in the systems? memory.
Press simultaneously on the keys: Ctrl, Alt and Del, which will open a known dialog box. Have a look on the ?Menu Bar?, and take the last one, ?Stop?. Choose ?Stop system? and press it at the same time with the key ?Ctrl?.