I have a clean installation of Windows Server 2012 R2 with the Essential Experience. I configured a backup but BPA gives me the warning "Windows Server Backup is configured to back up an unsupported partition". The description says that all partitions must be NTFS or ReFS. Looking at the Disk Management I see
Disk 0, System Reserved, NTFS, System/Active/Primary Partition
Disk 0, C:, NTFS, Boot/Page File/Crash Dump/Primary Partition
Disk 0, D:, NTFS, Primary Partition
Disk 1, E:, NTFS, Primary Partition
So all partitions are NTFS, hence I don't understand where this error comes from. Any input is appreciated.
Btw, I recall that when I setup the backup one drive or partition was not checked but I don't recall which one. It might have been D but again I am not sure.