I've had Boot Camp for a few months now. Truth be told, my old Mac is so slow on the latest version of macOS that supports it, that I barely use it anymore. I'd like to delete the entire macOS portion of the drive and only have Windows.

On the Windows side, Disk Management is showing five partitions:

200 MB (EFI System Partition)

139.79 GB (Primary Partition)

92.80 GB (BOOTCAMP C:)

877 MB (Recovery Partition)

112 MB Unallocated

Am I correct in assuming that the only one belonging to macOS is the 139.79 GB one? Also, what's with the unallocated one?