So, nod to RECUVA. Use it's deep scan. If this fails, it's off to drivesavers.com
With that out of the way, NEVER FORMAT or WRITE to drives you want to do recovery on. It's just never done. Never. Also, we NEVER try to fix partitions before we get the files out and safe.
My friend has a SanDisk Cruzer Micro 4gb memory stick with his university dissertation on it (and yes this is the only copy). Something has happened to it and now Windows is saying it cannot recognise the format.
On further inspection is appears to have a corrupted partition. I've used various pieces of data and partition recovery software to try and fix the problem but none have worked at all.
So I've then tried TestDisk which also suggests the partition table was corrupt and suggested rewriting to MBR, which I did and also didn't work. Also tried rewriting the table under FAT32 and NTFS and it couldn't find any previous records or evidence of the partition details.
So then regrettable I formatted it and then tried data recovery again, hoping the files would still be there hiding under the new format, but this also hasn't worked.
Does anyone have anything further they can suggest I try? It's a near 200 page dissertation I'm trying to recover for him but at the moment I'm all out of options.
Thank you !