The problem 'might' be that the files are being shared & so the files don't actually erase even though they might appear to. I'm guessing here b/c I'd have thought you'd receive an error message in such a case.

Close LW down (possibly even reboot) & erase them using either of these utilities: 1st see: http://support.microsoft.com/default...;en-us;Q308421
& then
http://ask-leo.com/why_cant_i_delete_this_file.html