Acronis True Image - wants to reformat drive overwriting current backups

Hello,

Finally completed rebuilding my crashed HDD. Tech rep offered and downloaded for us Acronis True Image so we could create an image copy of drive to make it much easier recovering our new build in the future.

When I run it wants to reformat the drive thus overwriting our current backups on our WD passport backup drive. Obviously, I don’t want to do that while taking advantage for the additional/free terabytes space available. Just assumed it would have simply created another backup folder.

Appreciate your help, time and look forward to your response.

Thank you!

John