All was fine till I updated WD Security, WD Drive utilities and WD Discovery.
After that the 8T My Book is visible, asks for password, I give it.
All the tests that exist in WD Drive Utilities are ok - green.
Trying to open the drive from Windows Explorer bring an error, “…Drive is not accessible”.
WD Discovery shows it as still locked, and when I press to unlock it, it pops WD Drives utilities where I have already unlocked the drive (diagnose window).
It appears to be a software error, possibly password unlocking related.
The pc runs on WIN7 Home Premium 64bit