I've never used Window Washer but you could always try a file recovery program & see how you go. You might be able to recover some downloads (depending how many files you've lost, it might be easier to redownload them rather than try to recover them) Check the thread below for links
Deleting files from LW library - Don't!! File recovery advice

It's probably just as easy for you to download & reinstall LW (unless you're using one particular version of basic/Pro that you love).

Found this on Google, this person was able to recover files after washing. No guarantees though, it was written in 2004 & there have probably been a lot of changes since then
http://lists.grok.org.uk/pipermail/f...st/025712.html