Resetting the Notebook
Occasionally, Windows or the notebook might stop responding, so that you cannot turn the notebook off. If this happens, try the following in the order listed. Press the power button to restart.
If possible, shut down Windows: press ctrl+alt+del,and then select Shut Down > Restart. If the system will not allow a software shutdown, press and hold down the power button until the display shuts down (about 4 seconds) and then release the power button. Press the power button again to restart.Use a ballpoint pen or a straightened paper clip to press the reset button on the bottom of the notebook.