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Computer does not start (Windows 8)

This document applies to all HP and Compaq notebook computers running Windows 8.
This document provides possible solutions to many common computer startup issues. Follow the steps in this document step-by-step to help isolate the problem and find the most appropriate help.
Perform a hard reset
Perform a hard reset of your notebook computer before you try any other troubleshooting steps.
Run the System Extensive Test
The System Test runs from the Startup menu. It checks the main components of your computer to make sure they are working properly. Use the following steps to run the System Test to check for problems.
  1. Press and hold the Power button until the computer turns off completely.
  2. Turn on the computer. Immediately press the Esc key repeatedly, about once every second, until the Startup Menu displays.
  3. Press the F2 key. The System Diagnostics screen displays.
  4. Click System Tests.
    Figure : System Tests
    System Tests
    The System Tests page opens.
  5. Click on Extensive Test.
    Figure : Extensive Test
    Extensive Test
    The System Extensive Test window opens.
  6. Click Run Once. The test could take several hours, depending on the configuration of your system.
Contacting HP Support
If you cannot find a solution in this document, contact HP for further assistance or to have the computer serviced.

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