Hi @Timon_2,
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As I understand you want information on how to unlock BIOS,
HP has locked a few settings on your computer which are being managed by the system configuration as the device is configured to its optimal performance.
There's no way of resetting or changing these locked settings via HP articles or assistance,
You could unlock and make changes at your own discretion using 3rd party tools, however, HP doesn't recommend the same nor has information about the tools used.
I hope you understand.
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Regards,
Jeet_Singh
I am an HP Employee