Why is my Lumia 830 keeping multiple copies of pictures in the library?

No I do not. They just appear after taking a single shot. Usually if you delete one, all disaapear.
 
@Nokia830BG it's probably because it's showing you the on phone photo and the one stored in onedrive.

In the photos settings there is a section Viewing and editing, and an option "Linked duplicates" Make sure it's on and the doubles should go away.
 

Members online

Forum statistics

Threads
340,467
Messages
2,263,512
Members
428,789
Latest member
kesho