@echo off
for /d %%i in (*) do (if "%%i" NEQ "xArchive" (for /f %%j in ("%%i") do (dir "%%i" /b|for /f %%k in ('find "%%j" /v') do @dir "%%k" /b /s|find "thumbs.db" /v /i|find "xArchive" /v /i))
put this in the directory that contains the numbered folders and run it there. I'll be back in a few hours If you need me to change it. ;)