Hers what we do.. Lets download a free program called recuva
go to this pagehttp://www.piriform.com/recuva/download
and on the left, download the free version, from piriform.com
Once downloaded, install the recuva program.. Once installed, run the program.
When it asks, we want to scan your E drive, and do a deep scan, for all files..
This may take about half an hour to an hour, depending how big your flash drive was.
Once complete, you should see all copies of files you have deleted in the last 3-6 months, maybe longer.
Now its just a matter of picking the files that matched your file name, restoring them. And one of those will be your file.
If you get stuck at any point, please send me a reply so that I can assist you further.
If my answer helped, please click one of the smiley faces to rate the solution, and then click the green accept button to accept the answer..
If my answer did not work, please wait to rate the answer and also wait to accept and instead send me a reply so that I can continue to assist you as needed.