Refs vs Ntfs
Refs vs Ntfs
You can choose between refs and NTFS for reformatting. The disk management suggests formatting as refs, but consider your needs before deciding.
It's merely a partition, yet disk management lists it as an option
ReFS isn't brand new—it launched in Server 2012, which means it's roughly five years old. ReFS is a more advanced resilient filesystem. For one drive, the changes aren't significant because most of its capabilities are already covered by Storage Spaces, so it doesn't add much extra value. It still offers the same security features as NTFS.
MS first launched it for file servers, so there’s no advantage in your configuration.