The Broken Link Viewer stores a list of broken links found on your site. A broken link error occurs when a browser attempts to access a page or item that does not exist. Link verification is done on text links, images, plug-ins, backgrounds, style sheets, scripts, Java applets, and more. The Broken Link Viewer contains a continuously updated list of URLs.
Note Although the Broken Link Viewer provides a list of broken links, it does not fix the links.
On the Manage Broken Links page you can see:
Click Broken Links in the Admin Tools widget, or from the Admin Tools menu on the minibar.
Click Expand This Branch beside the occurance date to view error details.
Note This only removes it from the list. You need to fix the link manually.