Personally I manually delete the files off the LW Downlds window once they reach 100% before I close LW. However you can, in your LW prefs or should I say, go to LW's menu Tools-Options & Downloads & tick Auto-Clear Completed Dwnlds. This will take them off the dwnld list as soon as they've completed. However, if you're still having the same problem, after you complete a dwnld delete the file from the dwnld list & make sure there's no other of same name listed in your incomplete folder (if yes delete it.)