The Book

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=== HP Elitebook and ProBook Password unlock ===

  - Download {{:downloads:hpbr.zip|HPBR.zip}}  file and extract it to folder
  - Insert clean USB flash drive.
  - Run the USB Image tool.
  - Choose the flash drive then click on **RESTORE**. (restores boot image file with all the utilities to stick)
  - After restore remove flash drive.

or

  - Download {{:downloads:hp_unlocker.zip|HP_unlocker.zip}}  file and extract it to bootable USB stick

then

  - Insert flash drive into locked laptop and boot. (If HDD is installed remove before booting.)
  - At **C:\OUTPUT**  type **CD..**  “Then hit **enter**”
  - Type **HPBR**  “Then hit **enter**”
  - Select **#3 re-program**. (to save your settings)
  - Press “**S**” to save system information.
  - Type **HPBR**  and hit **enter**.
  - If your model is not listed select “**SHOTGUN**.”
  - Reboot
  - After reboot repeat the procedure (without 3. 4. and 5.) and select “**SHOTGUN**” a second time.

The BIOS should be unlocked now.

This has been tried on following HP models:

^ProBook ^EliteBook ^ProBook "SHOTGUN" ^EliteBook "SHOTGUN" ^DID NOT WORK |
|2230s |2530p |6560b |2540p |4630s |
|2740p |2560p |6445b |8740w |6720s |
|4310s |2730p |6565b |8440w |2710p |
|4510s |6930p |6540b |8460w |4320t |
|6455b |8460p |  |  |6465b |
|6460b |8530w |  |  |4420s |
|6535b |8540w |  |  |6450b |
|6550b |8440p |  |  |4520s |
|6730b |8530p |  |  |4415s |
|6735b |8560p |  |  |  |
|  |8560w |  |  |  |
|  |8730w |  |  |  |
|  |8540p |  |  |  |

HP Support Forum thread - [[http://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/ProBook-6540b-BIOS-locked/m-p/5521515#M329535|http://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/ProBook-6540b-BIOS-locked/m-p/5521515#M329535]]

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