Ages ago I formatted a Seagate 512GB hard drive to a different format (HFS+ I think) so I could plug it into my TV to play files bigger than 4gb. For years this has worked fine with my TV and when connecting to my PC. However, recently I registered the drive with my Sony TV to try using it for recording. I then 'de-registered' so I could use it as normal and now it will not come up in the File Explorer window.
It is recognised in the 'Disk Management' app (attached - DM.jpg) in Windows but all the options when I right click are ghosted (DM2.jpg).
I have tried HFSExplorer but that came up with an error message (HFSEx.jpg).
Has anyone got any ideas that might help?