Mini PC vs ATX PC ?
Mini PC vs ATX PC ?
You're asking if you need to address UEFI before switching to GPT, and you're checking if your drive is MBR by using disk management and looking at the volume tab. Your properties don't show volume as an option, which might explain why. Regarding reinstalling Windows 11 next year, you should be able to do it through a standard install unless you encounter specific issues.
No, wrong. First - convert to GPT. Then switch to UEFI boot. You didn't check the properties of the drive. You checked properties of a volume/partition. Right-click on the left section in Disk Management window, where "Disk #" is written. On unsupported hardware you'll have to use some kind of workaround.
Assuming your i7 is from the 6th or 7th generation with DDR4 support, and you're not aiming for an Intel 11 compatible build, a straightforward solution would be to swap the motherboard and CPU to AM4 models or opt for a 12th generation Intel processor paired with a DDR4 motherboard.