Solved: Bios Update F.10 affects UEFI OS Boot Manager (Paviliion 15 ... - HP Support Community - 7722572
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Secure boot option grayed out in BIOS in HP laptop | Why can't I enable Secure Boot in HP BIOS. - YouTube
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How to fix the “Selected boot image did not authenticate ” error — HP laptop | by Prabakaran A | Medium
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