New My Passport 4T drive Can't install WD Backup

I installed utilities ok but the backup app quits about halfway through. OK I have Backup installed but when I try to do “First Backup”
it says no backup target found. Passport is plugged in and seems to be working as I can save files to it.

Hi LeeM,

You can have a look on below mentioned KBA for this concern.

https://support.wdc.com/knowledgebase/answer.aspx?ID=18371&lang=en