Need Windows license patched Elitebook 850 G3

[Th3_uN1Qu3]

Hello folks, I have removed the admin password from a HP 850 G3 laptop by flashing BIOS, however it has also lost the Windows license in this process. Could anyone fix the file for me, or better, teach me how to patch the license myself? I can't find any straightforward way to do this with the BIOS dump, only from a running system.

Files are attached. The CLEAN ME one is the clean BIOS with clean ME, the other file is the file with the password and original Windows license.

Thanks in advance.

[SMDFlea]

Re: Need Windows license patched Elitebook 850 G3

The key is at offset: B15212 Block: B15212 - B1522E

Use a Hex editor, such as HxD https://mh-nexus.de/en/hxd/

EDIT:

In the CLEAN ME dump the key is at offset: B16F22 - B16F3E (oa3 unicode search)

Copy the hex from the old into the new.

OLD: 4B 4E 39 33 50 2D 33 46 42 57 47 2D 42 4B 32 43 33 2D 59 47 4B 4A 56 2D 48 58 4D 50 32

CLEAN ME: 39 4E 51 37 42 2D 51 39 57 44 59 2D 54 52 48 43 51 2D 56 48 47 4A 46 2D 57 38 46 39 43

[Th3_uN1Qu3]

Re: Need Windows license patched Elitebook 850 G3

Thank you for the detailed explanation, did not think the key would be in plain text. Much appreciated.

[Mazorca]

Re: Need Windows license patched Elitebook 850 G3

Thanks SMDFlea, I learned something useful today too.

[Techtiger]

Re: Need Windows license patched Elitebook 850 G3

SMDFlea
Thanks for explanation

[IamPritesh]

Re: Need Windows license patched Elitebook 850 G3

SMDFlea, thank you very much. We learnt something new today .