Unable to put in UEFI for update

I am wanting to install Windows 11 I decided to update my computer configuration.
 
However, I am faced with a dilemma that I cannot resolve alone despite having read many articles on the subject.
 
Indeed, I cannot activate secure startup.
 
When I launch the integrity of my configuration in order to know whether or not I can claim the upgrade, it is only this element that is blocking.
 
If I go to my bios to only put uefi in boot I no longer have access to the mvne + all of my satas and therefore cannot boot windows to arrive on the desktop.
 
I have to put it back in uefi and legacy to be able to return to the desktop.
 
Likewise, by going to the update then windows advanced restart I do not come across the possibility of upgrading to uefi.
 
My configuration is the asus strike rog z 790 wifi motherboard + 64 ram 7200 corsair + intel i9 13 gen 13900f + nvme samsung 990 pro 2 to + 2 hard drives + 1 cd player and I am running windo pro 10 license activated.