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HP Recommended
EliteDesk 800 G6
Microsoft Windows 11

Would like to be able to boot "Ultimate Boot CD" from USB stick, the UEFI BIOS won't let me do it / I don't know how.

It boots fine on "all" older computers, in ages "Windows 98 to Windows 7". 
For example I'd like to make harddrive copies from outside of Windows so I can verify the copy and other things. 

 

So, how do I do it, there's no Legacy boot option as far as I can see, there's a bunch of options I don't what they are for, there are the same things repeated and different menu options with the same settings (update BIOS for example) some work others don't. 

I read that TPM should be disabled (there's no such option), Secure Boot disabled (sure, no problem) and enable Legacy boot - can't find such an option. 

 

Is there simply no way to run it, should I give up?

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