Hi fuwi,
just updated Recuva plugin and tested on Gena (and Gena x64) without vss,
it finds deleted files after deep scan, and recovers...
maybe requirements missing on your side (Win8...SE ),
or maybe Recuva behaviour changes on nt6x,
try
Gena\Apps\HD Tasks\File Undelete\Recuva plugin (without vss enabled)
Let us know if it effects your results