You can identify and delete files that are
no longer used by other files in your site.
Select Site > Check Links Sitewide.
Dreamweaver checks all the links
in your site and displays the broken ones in the Results panel.
Select Orphaned Files from the menu on the Link Checker
panel.
Dreamweaver displays all the files
with no incoming links. This means that no files in your site link
to these files.
Select the files you want to delete and press Delete
(Windows) or Command+Delete (Macintosh).
Important: Although no other file in the site
links to these files, some of the listed files may link to other
files. Use caution when deleting the files.