09-10-2016 11:46 PM
Thank you for posting in the HP Support forum.
If you see this code A0F9B5A2, please use this response code to unlock it >> 85192534
Enter the response code and your computer will be able to boot. The response code will delete BIOS security settings, clear all passwords set. Should the need arise, you can enter BIOS eventually and enter new password
Let me know if this works for you.
**** Mark this post as an ACCEPTED SOLUTION if it helps **** Thanks !
I am not employed by HP Inc. I express personal opinion only. **** HP Expert **** I work in IT and cyber security