Don't waste your money. it isn't free, the product cost me $80 Australian. 'recovered' 17 photos from around 74 GB of data. every spreadsheet and document was nothing but gibberish and according to their site. if you bought the product, stiff. no refunds, no care and no concern.
thought they were reputable but they're nothing but a con. if you've lost data, either send the drive to a recovery centre or just kiss it all goodbye, but DON'T BUY THIS RUBBISH!

oh the free bit? you get to download and install it, but it'll only "recover" up to 512mb for free.