I am going to use a 3rd party software to do a full format of the drive or I might encrypt the whole drive too, but will that lose the unlocker tool that normally pops up to lock or unlock it? How will I get that back to re-add a password after?
WD My Passport Ultra 1TB External USB 3020 Portable Hard Drive Classic Black Model: WDBGPU0010BBK-NESN
There is no way to remove it from the disk. Once you’ll reformat the drive, you could set a password using WD Security and use WD Drive Unlock application.