Windows 10: Secure Boot State Unsupported with UEFI Bios and GPT Disk Formation.

Hello everyone. I am currently running Windows 10 Insider Build and have gotten the option to update to Windows 11 Insider Build but my PC is coming up with the error "This PC Can't Run Windows 11. This PC Must support Secure Boot.". This is very confusing because my PC is using UEFI Bios Mode and the Hard Drive is formatted as GPT. Within my Bios menu, I do not have any option to Enable/Disable Secure Boot.

:)

 

Secure boot state unsupported

HI

Pavillion dv6t6c00 with i7 processor, Can I change the disk from mbr to gpt; if so how in windows 10.

I have a brand new hard drive I can reinstall windows 10 if needed. I don't see any bios updates in my notebook. msinfo32 shows that secure boot state is unsupported. Can you help how to change the bios mode from legacy to UEFI and secure boot state to
on.

Thank you

 

Unsupported disk layout for UEFI firmware

I hear you on configuring your own PC the way you choose to.

His PC could not boot to a GPT disk if in Legacy BIOS mode. It could not boot to an MBR disk in UEFI mode. The error tells us that his disk is not partitioned for UEFI, so he is in Legacy BIOS mode, on an MBR disk, but has UEFI/GPT capability. On a Legacy
BIOS-only PC, like my 2007 Dell XPS laptop, it would not give this error.

You are right that we do not know which version Windows Update is trying to install. He might not be able to upgrade directly from version 1507/build 10240 to version 1709 (or 1803). I could do a test tomorrow to see if the upgrade can be done in one step.
I think that it might have to be done in two upgrades via Windows Update (because 10240 cannot do a UUP Windows Update) but probably can upgrade in one step via mounted ISO.

Using a downloaded ISO might also bypass this error, as I think you originally suggested, leaving the disk as MBR.

 

Benefits of UEFI/GPT boot disk vs. MBR for Windows 10

Hi,

Thank you for this information. Unfortunately it doesn't clearly answer my question whether I will benefit from using GPT format for Windows 10. In the past I didn't have to think about these options because my old motherboard had only legacy BIOS
mode. As I'm using an SSD as my system drive with only one partition, by changing drive partition style to GPT I will get only these benefits:

1) Improved redundancy and partition data structure integrity as GPT disks use primary and backup partition tables as well as CRC32 fields.

2) Ability to use the UEFI version of BIOS, which can speed up boot and shutdown times and in order to boot my PC in UEFI mode, I'll need to use the GPT drive format.

Did I miss anything?

Now there are two things that are constantly being mentioned in relation with UEFI mode and GPT disks - Secure Boot and Compatibility Support Mode. Both are present in my motherboard BIOS and their default settings are at Enabled. What are these for
and should I do anything beyond their default settings?

Thanks