It depends how your boot is setup

If you intially get the uefi boot (usually black screen) then try to search “removing entries from uefi boot in Linux”

If you directly get colorful screen then it could be grub and in this case u search for grub instead of uefi

But it also could be something else that is neither grub nor uefi, you really need to find out first what is your bootloader

The easiest solution is to format windows partition and mount it as separate mount point (for example /mnt/extra) and use it for storing any large files you have (movies, songs, books, photos, backups, downloaded files …)