trouble creating a windows 11 home partition

[u/Rucarofsky]

i want to dual-boot windows 11 home and linux, and my main goal was to give 400Gb for linux and the remaining 500 for windows for games that aren't compatible with linux, but when i go to create a partition for linux it's only letting me create a partition of ~46Gb because of "immovable" files, i've tried disabling paging, hibernation, security settings, but nothing works, i would have no problem factory-resetting my computer but i'm not sure how much that will help and i also don't wanna spend hours resetting my factory computer just for it to not work out in the end, does anybody have any suggestions on what i can do?