computer screen stuck mouse can't move how to solve?

When the computer is working, sometimes the screen is jammed and when there is no response, how can we solve the problem?

1, our left hand hold the "CTRL" Key and "Alt", right hand hold "Del" key, three keys at the same time, will appear as shown in the following figure

2, we click to start Task Manager will see the image below, will show that our computer is still running the program

3. Which one of us is stuck we will click on the program, and then click "End Task"

4, you will see this program has been closed. There's no whole program running in this.

5, this method can only lift our urgent, if this method does not work, then can only reboot, if the computer often freezes, do not run, the proposal or to invite professionals to see OH.