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‎11-02-2022 11:27 PM

HP Recommended
Product: HP ENVY Desktop - 750-624

I forced turn off my desktop (HP Envy Desktop 750-624) because the screen was black. When I turned it on, it has a red message box that says: "Invalid signature detected. Check Secure Boot Policy in Set up". 

 

There is no other option but to click "OK"

 

Once I click "OK", it goes to a color blue box that says: "BOOT DEVICE NOT FOUND" "PLEASE INSTALL AN OPERATING SYSTEM ON YOUR HARD DISK", HARD DISK-(3FO), F2-SYSTEM DIAGNOSTICS.

 

I pressed F2, then it goes to HP PC HARDWARE DIAGNOSTICS UEFI and it has selections as follows:

-System Information

-System Tests

-Component Tests

-Firmware Management

-Test Logs

-Language

-Exit

 

From here it just kept repeating everything

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