Its a good idea to leave the Confirm deletion option enabled, so you'll have a chance to override AutoPlay's choices before the files actually do get deleted.
As soon as you click OK, the resource optimizer will begin scanning the project directories, looking for files that aren't referenced anywhere in the project.
4 ) Wh e n t h e C on f i rm De l e t e di a log a pp ear s , ver i f y t h e li s t o f f il e s t h a t A u t o P l ay w a n t s t o d e l e t e , a nd c li ck O K t o d e l e t e t h em .
The resource optimizer is very, very fast, so the Confirm Delete dialog will appear almost instantly.
Clicking OK will delete all of the files in the list that have check marks next to them. Make sure you examine the list carefully - once a file is deleted, you cant get it back.
5 ) Ob s erve t h a t t h e f il e h a s b ee n rem o ve d f r o m t h e P r oj ec t p a n e .
As you can see, the Icon-003.png was successfully removed in the previous step.
Tip: Use the resource optimizer to clean up any unnecessary files before publishing your project.