I have a WD MyPassportUltra, 3tB, product ID WDBBKD0030BBK-05. I bought this drive in 2015 and it has worked well. Just this week, I noticed a new behavior: when I attach the drive to my Win10 PC, it is immediately recognized and available via Explorer. Previously, the “WD Unlocker” dialog would appear and I had to provide a password to unlock the drive. That no longer happens.
What do I need to do to require the use of WD Unlocker and the drive’s password?