Give Fatdog a try. If it can mount the drive then there is some issue between the drive and Windows 10. You may need to reformat the disk.
I just tried connecting the 8TB drive to my laptop after using it last night and now even my laptop won't ID the drive - my laptop won't list it anywhere, so I was unable to see if it didn't migrate the drive like my PC won't. I had run a Scan/Fix on the drive using my laptop last week which made the music I stored on the drive sound funky, and may have truly screwed the drive for good, so I now have no choice but to erase and re-format the drive to see if that fixes my issue. The Seatools software can see and diagnose my drive and the diagnostics are showing up as "no problems, healthy drive" but nothing is being displayed regarding the SMART file on the drive that would tell me read times, spin rates, etc. I want to ensure that I don't have any bad heads in the drive.
I am choosing to do a Sanitize/overwrite of the drive to get completely rid of all files on the drive so I start fresh like it was out of the box.
I do want to find a program that can make copying drives easier for backing up my music on external drives - is this cloning I'm looking for or a copy program? Any suggestions? In the past, I've just used copy/paste method to copy my external drives, but I've found that some files failed to transition over to the new drive.
My Seagate drives are formatted as GD NTSF partitions - all I put on the drives is my music for my DJ business.