Recuva sends me message ´´ INVALID FILE SIZE

Í bought the professional version but whe i click for file recovery(USB) the reply comes INVALID FILE SIZE.

What is that?

Yesterday I downloaded the free version and it sent me the same message so today i bought the Pro Version but still NOTHING WORKS.

So desperate to retrieve my files.

Is the message 'Invalid drive size' or 'Invalid file size'? What sort of device is it and what is the file system?

The message is `Invalid drive Size`and it is a USB Stick from Hama.I saved Songs in Wave format on it.

about 10 Gigabytes of songs in various directories are on it.

I haven't experienced this myself, perhaps it would be better to read through https://forum.piriform.com/?showtopic=40720 for a start, or try the many hits on Google for this problem.

I recognize that this post is rather old, but I just had the same issue and thought this might be helpful to others. I simply tried a different laptop and Recuva worked normally. No idea why the first laptop kept giving me errors (both are running Windows 10) but that's a problem for a different day! :-)