I purchased the professional version specifically for the disk space management feature – which is not working. I am backing up to a USB attached harddrive with roughly 8 times the capacity of the data being backed up. When the drive is full, the back up fails with the comment: “Information Code:4138 There is not enough space on the disk.”
Disk space management is enabled with a full backup after 10 differential versions . The machine is running windows 10 with all updates.
What should I do?