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My notebook is locked/frozen and I cannot shut it down.
If your notebook is locked/frozen and you are unable to shut down the notebook from the operating system, you will need to perform a hardware reset. To do this, press the POWER button for several seconds until the POWER LED on your notebook is off. Restart your notebook by pressing POWER button again.
NOTE: Hardware reset should only be done if your notebook has locked up and you are unable to shutdown your notebook from the operating system.