I am having a desktop and laptop. I am using file synchronization between both to keep updated files on both the place. I had upgraded the desktop. The laptop has windows xp installed on it. I found that file sync is not working here. So I want to clear the old files. But the same also is not working well. I am using a registry cleaner also, but nothing helped much. I want to delete all the references of old files which are not synced.