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- Notebook Boot and Lockup
- Secure Boot

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11-07-2026 11:32 AM
I have already installed BIOS F.34 on my HP Pavilion All-in One 27-xa0014, motherboard 84EE. Secure Boot still produces an Invalid Signature Detected error. Windows works with Secure Boot disabled. Please connect me with a live HP technical support representative who can confirm whether my model supports the 2023 Secure Boot certificates and provide a model specific fix.
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