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Troubleshooting Boot Issues

Hewlett Packard machine specific tutorial

  1. Crush
    HP Notebooks - Resolving Start Up/No Boot Problems Checklist


    Check the original document on HP site, or start reading:


    http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02798426&lc=en&cc=uk&dlc=en


    You may love or hate HP, but you will be hard pressed to find more customer information available.

    If computer does not start normally, use this checklist to identify specific symptoms and take the recommended corrective actions to resolve the problems.

    Perform a Hard Reset

    Do these actions first to clear all temporary setting before troubleshooting the problem.

    1. Disconnect all peripheral devices and remove all USB devices and media cards.
    2. Disconnect the AC power adapter, remove the battery, and then press and hold the power button for at least 15 seconds to drain residual charge.
    3. Reconnect the AC power adapter (do not connect the battery), press the Power button and look for the LEDs to blink or glow, and listen for the sound of a disk drive and fan turning.

    Perform each recommended corrective action and then attempt to restart the computer.

    Symptom 1: LED lights do not glow, display is black, no fan or drive sounds are heard, and computer does not start

    If LEDs do not glow or blink when AC power adapter is attached and power button is pressed, there is no power available to the notebook.

    • Check AC adapter wiring and power connection to the notebook.

    • Connect a different AC power adapter and remove battery, then restart notebook.

    • Connect a different battery and disconnect AC power adapter, then restart notebook.

    • If there is no power available at the notebook, contact HP to purchase a replacement battery or AC adapter.

    Symptom 2: LEDs blink or computer beeps but does not start

    Blinking LEDs or beep tones indicate a hardware failure during the pre-start up testing.

    • Count number of blinking LEDs or beeping tones to help with diagnostics testing.

    • Contact HP for technical assistance. There are no other user-initiated troubleshooting actions until error codes are resolved.

    Symptom 3: LEDs glow, fan noise may be heard briefly, display remains black, and computer fails to startup or boot

    Usually occurs if a component is installed incorrectly, or there is a device conflict or failure.

    • Connect an external monitor to check if the problem is the built-in LCD display or graphics card.

    • Remove all CD/DVDs, SD cards, USB devices, peripherals and do a Hard Reset .

    • If memory or hard drive components were replaced, reinstall original components.

    • Remove memory modules and replace one-at-a-time.

    • Remove and reseat hard drive.

    • If possible, turn on power, press F10 to enter BIOS mode, and run Memory Test and Hard Drive Test .

    • On newer notebooks, turn on power, press Esc to enter UEFI mode, and run Memory Test and Hard Drive Test .

    • If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and select Repair Computer option, or enter Safe Mode and run Memory Diagnostics .

    • If all other methods fail , but computer can boot to BIOS, use recovery disk to recover the computer to original condition.

      Note: All programs and data are destroyed during recovery.

    Symptom 4: Computer may display an error message on a black screen during startup or boot



    • If possible, turn on power, press F10 to enter BIOS mode, do the corrective actions listed under Symptom 3 to run memory and hard drive tests.

    Symptom 5: Computer displays a blue screen or continually re-starts

    After an error message is displayed, you can usually bypass the error and continue to run the notebook in Safe mode to install an updated BIOS or driver.



    • If possible, turn on power, press F10 to enter BIOS mode, and run diagnostic Memory test and Hard Drive test .

    • If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and do one or more of the following:
    • Select Disable automatic restart on system failure to view error message.
    • Run Repair Your Computer .
    • Run Last Known Good Configuration .
    • Select Boot into Safe Mode and then select Run a Microsoft system restore .
    • Select Boot into Safe Mode and then select Uninstall recently installed programs .
    • Select Boot into Safe Mode and then run Windows Update .

    Symptom 6: Computer displays the Windows logo screen and stops responding

    If no error message displays, turn on power, press F8 to enter Windows Advanced boot options ,and select Disable auto-restart to view error message.



    • If possible, turn on power, press F10 to enter BIOS mode, and select Restore the BIOS defaults (F9) .

    • If possible, turn on power, press F10 to enter BIOS mode, and run Hard Drive Test .

    • If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and select Last Known Good Configuration (Advanced) .

      .

    • If possible, turn on power, press F8 to enter Windows Advanced Boot Options , and select Boot into Safe Mode and then Uninstall recently installed programs .

    Update Computer After Resolving A Problem

    When the computer starts into Windows normally, you should install the latest updates and patches to prevent other start-up problems.



    • Run the anti-virus program.