Mac keeps asking for password to access my WD My Book Studio
I had an iMac that I bought in 2011. When I was encouraged to start doing Time Machine backups, I went & purchased a My Book for mac which worked really well.. until it didn't. I had to have it replaced under warranty for a My Book Studio. I had done many Time Machine backups over the years & also dragged over stand-alone folders of music, photos & videos.
My problem is this. One day my computer just froze. I can still turn it on but it takes around 9 hours to get to the home screen & then nothing will load & the rainbow pinwheel just spins. I thought, okay.. that's fine.. it's getting really old & I don't have to worry because I've backed up all my stuff.
I decided to order a reburbished older 21 inch desktop instead of a new one so I had access to a SSD for my camera disk & so that everything I had backed up (including the time machines) would have a better change of working because I wouldn't be jumping too far ahead in operating systems.. (I'm currently using 12.7.2 - late 2015). I'm extremely happy with the "new" computer UNTIL I plugged in the WD My Book. Immediately it asked me for a password... problem is, I never set up a password. The hint is PP, which is ALSO something I never did (who would use initials for a hint?) I contacted WD.. I did all this troubleshooting... they told me I had to contact Apple who would provide the password. So I rang Apple & they INSIST that I created a password & CHOSE to encrypt the HD WHICH I DID NOT.
I downloaded WD Security & confirmed that there is NO PASSWORD SET for the hard drive. I set up one & took it off to see if it did anything, but nothing changed. It kept asking to retrieve something from my keychain, but that didn't do anything either.. (I think that was only to do with the new password I had just set up). When I try to mount it via WD Discovery, it comes up with a dark green Book OS icon, but there's nothing in it but an empty "backup" folder. It claims there only 120mbs of data on the entire drive. The My Book studio icon - when working, is a dark yellow.
So is there anything I can do? I have tried & tried to gain access to my old computer, but I just can't.. & no password I try will let me into the HD.
Is it some kind of encryption password that was done automatically? Because I remember speaking to Apple years ago about the fact that when it performed a time machine backup, it would say "encrypting data".. but why would anyone choose to backup all their precious memories if the HD is tied SOLELY to the computer it's backing up? I mean, isn't that the whole point of the backup.. so that you can use it on another computer if yours stuffs up?
Anyway, any advice would be greatly received.
Thank you in advance.
iMac 21.5″, macOS 12.7