This is likely due to the fact the drive is formatted in a Linux file system (like EXT4)
You would have to completely remove any non-windows partitions on the drive before windows will let you install. (or at least have 1 accessible FAT32 or NTFS partitions with enough space for the windows setup files)
I suggest a Linux Live disk (like the ubuntu installer) use gparted, remove any partitions on the drive and win10 setup should just see a drive with 100% unallocated space and create whatever partitions it needs.
Hope this is helpful.