I am a video editor. I have four internal drives. I have a 4TB WD Passport set up for backup. Setting up the Passport was fine; hourly backups proceeded fine until a couple days ago, I discovered that the drive had not been backing up since late February. On that drive there was 3.63TB available and 3.70GB free. That’s around 10%. (by the way, I was never informed that the Passport had ceased backing up.) I presumed that Win10 needed more space to work. I am not now shooting, my video files are on my D drive. I am not now shooting so I decided to nuke the D drive on my Passport and to back up it up on another external. I bought an external 1TB easystore at bestbuy. There is 613 GBs on the D drive. There is 931 Gbs available on easystore. When I attempt to back up I get this error message. “Unable to back up files because there is not enough room.”
What is going on?