Greetings,
Welcome to the forum.
I am not a HP employee.
I don't think it's a BIOS update problem. A bad BIOS update would break your PC, no POST, and no loading Windows .
But it could be a Windows Update problem.
Try Microsoft System Restore using a restore point prior to the last Windows Update.
But you do have a issue if a Windows Update is causing a problem.
Try running HP Diagnostics (Link) at system startup.
Run a Check Disk (Link) to verify system files.
Regards