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HP Notebook PCs - Recover an Earlier Version of BIOS

If your notebook's BIOS becomes corrupted - either due to a bad install of a BIOS upgrade or a some other software-related mishap - then the computer displays a black screen and does not boot. It will not load any BIOS or System Recovery screens, nor will it boot from peripheral devices, because those actions require a functional BIOS. If this happens, you can recover an earlier BIOS version in order to restore your notebook's basic functionality.

Recover an earlier version of BIOS

Whenever you upgrade the BIOS on your notebook, a copy of the previous version is stored in the HP TOOLS partition of your hard disk drive. This is considered the last known good version of the BIOS. Newer HP notebook PCs have an emergency BIOS recovery feature that will allow you to recover and install the last known good version of the BIOS from the hard drive, as long as the hard drive remains functional. This emergency recovery feature is separate from the BIOS and is designed to work in the event of a catastrophic BIOS failure.

To recover an earlier version of the BIOS on your notebook:

  1. Plug the notebook into an AC adapter.

  2. Press the Power button while holding the Windows key and the B key.

  3. The emergency recovery feature replaces the BIOS with the last known good version. The computer reboots automatically when the process is completed successfully.

    NOTE: If your HP TOOLS partition does not contain a last known good version of the BIOS, or the partition has been removed or is otherwise inaccessible, then the emergency recovery feature will hang. You can press the Power button to turn the notebook off.

You will be able to boot into the BIOS screens or Windows operating system per usual after recovering the BIOS.

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