You cannot install Windows 11 with Legacy BIOS. Installing in Legacy or CSM mode on a modern UEFI BIOS is like buying a new car and disabling all of the safety and performance features.
So you'd either need to reinstall Windows 10 exactly as I wrote out with illustrated tutorials, install Windows 11 in UEFI mode which I again gave you illustrated tutorials showing how to do this, or if you want to try to convert your present install to UEFI you can try this method:
https://www.windowscentral.com/how-convert-mbr-...
Once you convert the install and enable UEFI mode in BIOS, hopefully Secure boot will be apparent in the BIOS settings.
If not, then again I told you every single step you should make, even provided your BIOS Manual, the latest BIOS Update, how to contact Asus Support or a dozen different Asus forums that can help you with the specific settings in your Asus BIOS, since they are all different.
There is no one else on the web who would have taken the time and effort to do all of this research for you, posted back step by step instructions, each step illustrated by a tutorial explaining how to do it.
So trying to upgrade to windows 11. I had the error of no TPM 2.0 and secure boot disabled. So I went into the bios and got the TPM error to go away and also enabled secure boot. I had to disable the CSM to enable the secure boot but it wouldn’t boot windows with the CSM disabled so I turned it back on and was able to boot up fine.
The issue is that I am still getting the error that secure boot is the reason I can’t download windows 11. When I go to info I see secure boot state as unsupported. Not sure what to do from here. Not sure if the CSM being enabled is messing this up.
Secure boot state unsupported
Enabling Secure Boot on H770 in BIO still has it unsupported in Windows
Secure boot unsupported after enabling it in bios
System Info says PC doesnt support secure boot but Asus lists my Mobo as windows 11 ready, latest BIOS v4602 installed
Videos
You cannot install Windows 11 with Legacy BIOS. Installing in Legacy or CSM mode on a modern UEFI BIOS is like buying a new car and disabling all of the safety and performance features.
So you'd either need to reinstall Windows 10 exactly as I wrote out with illustrated tutorials, install Windows 11 in UEFI mode which I again gave you illustrated tutorials showing how to do this, or if you want to try to convert your present install to UEFI you can try this method:
https://www.windowscentral.com/how-convert-mbr-...
Once you convert the install and enable UEFI mode in BIOS, hopefully Secure boot will be apparent in the BIOS settings.
If not, then again I told you every single step you should make, even provided your BIOS Manual, the latest BIOS Update, how to contact Asus Support or a dozen different Asus forums that can help you with the specific settings in your Asus BIOS, since they are all different.
There is no one else on the web who would have taken the time and effort to do all of this research for you, posted back step by step instructions, each step illustrated by a tutorial explaining how to do it.
Hi Alireza. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.
There's a November 2021 BIOS Update here if yours is not updated:
https://www.asus.com/Motherboards-Components/Mo...
Then you can read the Manual here to find out how to enable Secure Boot:
https://www.asus.com/Motherboards-Components/Mo...
If it's still not clear then contact Asus Support to find out how to enable Secure Boot on your BIOS:
https://www.asus.com/support/
You can also ask in Asus forums:
https://blog.feedspot.com/asus_forums/
Is Windows presently installed in UEFI mode, as this can make a big difference in Secure Boot showing up? If you're unsure type System Information in Search, open and look for BIOS mode.
If not installed to UEFI I'd consider reinstalling to UEFI either with WIndows 10 doing this gold standard Clean Install which includes everything that works best in Windows 10: http://answers.microsoft.com/en-us/windows/wiki...
or do a Windows 11 Clean Install:
https://www.groovypost.com/howto/clean-install-...
https://pureinfotech.com/clean-install-windows-11/
Make sure to create the bootable media using Media Creation Tool only, boot the media as a UEFI device, delete all partitions down to Unallocated Space to clear formatting, then select the Unallocated Space and click Next to let the installer create and format the needed partitions - which makes it foolproof.
Feel free to ask back any questions. If you'll report back results for each step it can help determine what else needs to be tried. I will stick with you until it is fixed.
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