How do I get rid of the picture??

[AC Question]

Okay so I have a pic which I have deleted from every gallery I can find, however when trying to draft an email (Yahoo.com) and select attachments it reappears. How do I get rid of the picture?? I have a Samsung S6 and this is driving me mad!! Thanks in advance.

How can I finally get rid of it??

 

[Rukbat]

You missed at least one file with that picture. Media Scanner scans the entire device ans picks up all media files, it doesn't miss the one you did.