1 Rookie

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33 Posts

6005

March 24th, 2022 09:00

disable UEFI

Followed instructions on dell web site  PC still does not see boot drive.
how do I disable UEFI on a dell OptiPlex 7050 micro?
Thanks...

9 Legend

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47K Posts

March 24th, 2022 11:00

@ringo 

UEFI cannot be disabled.  MBR booting is no longer an option past 6th gen skylake.

GPT UEFI is now required as is 64 bit windows.

No more CSM  or windows 7 or 8 or 32 bit os.

1 Rookie

 • 

33 Posts

March 30th, 2022 04:00

Thank you ... Was not what I wanted to hear but gave me a clear path to a solution.  Bummer Dell is limiting BIOS  in the latest hardware.  
Worse yet sales assured me the  7050 would support BIOS. 


 

9 Legend

 • 

47K Posts

March 30th, 2022 05:00

@ringo 

"Bummer Dell is limiting BIOS in the latest hardware"

Has nothing whatsoever to do with DELL.

Microsoft and INTEL etc made class 3 UEFI mandatory.

This means no more legacy, no more 32 bit and no more CSM MBR booting.

They announced this wayy back in 2017. So ALL vendors are going along with the no more legacy and no more 32 bit.

UEFI_Classes.jpg

intel-uefi.jpg

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