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FreeDOS

Hello, My HP notebook came with Freedos 2.0. Product no 5DZ922PA#ACJ


The BIOS(UEFI) program is InsydeH20 version F.14(rev.5.0). I installed MX linux 18 keeping the freedos partition intact with 'legacy support' enabled, it was working. By default, it comes with 'secure boot' disabled.

now, when I change 'legacy support' to 'disabled', the 'secure boot' does not change at all, i.e the 'secure boot' option is greyed out & remains disabled; I cannot select with arrow keys. see screenshot, [edit] can only select the blue lines. Resulting a message on screen on next startup....
Boot Device not found
Please install an operating system on yourhard disk.
Hard Disk(3F0)

I followed this link.... https://support.hp.com/in-en/document/c03653226 but this did not help much.

My question is How can I enable the 'secure boot' option?

Regards

Suv

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