User's Manual

6.1.2 A Program Stops Responding
Press and hold the Ctrl, Shift, Esc keys or Ctrl, Alt, Delete keys.
When the Windows Task Manager dialog box appears, select
the program that is not responding.
Click the End Task button.
If you need to restart your notebook, you can do so from the
Windows Task Manager window. First close all programs to
ensure you do not lose unsaved work, then click Shut Down
to reveal a drop-down menu.