If it crashed completely, then there's no chance, you'd have to take it to a recovery center.
If it still works and you can access it, just open up your browser, click export, and follow the steps to export you bookmarks/favourites. It'll create and new file for you with all your bookmarks in it.
Or, do this: C Drive - Documents & Settings - Your Name... then just copy those bookmark files to a disk/USB drive.