Windows 11 Setup forcing me to wipe my disks, entirely.

Hello ! I've tried installing W11 with the assisstant tool and mounting the ISO but both led me to the same problem: The setup keeps me from clicking the "Keep all files and data blahblahblah" option, leaving only the "Erase everything" one (not the exact names, just off memory). My system has passed the hardware checks (yes, even the tpm is good) W10 is installed on C: contrary to what the install is saying in the footnote and is completely up to date. Any ideas on how I can solve this ? Help is appreciated :)

For anyone wondering, this is my disk management : image.png

In Disk Management, check your partition scheme in properties. If it is MBR then you need to convert to GPT. This may or may not be the issue...

Another issue may be that Windows 11 needs room for a recovery partition or the MS System Reserved partition is too small.

...not entirely sure on this one...

My 500GB SSD where Windows is installed (C: obviously) is GPT while my two other disks (ssd and hdd) are MBR.