I have downloaded a file with utorrent (3.3 GB), and I have deleted it. I then recovered the file using Stellar Phoenix Windows Data Recovery Technical, but whenever i run the setup file I get this error message: This app can't run on your PC. So I thought maybe if I add the torrent file again with the same folder utorrent might re-check the files and presumably "fix" corrupted files, but utorrent acts like there are no files and downloads from the beginning.
The torrent client is going to identify and verify files by their hash, not by the file name.
You recovered it, and it was corrupted (no surprise). Since it's corrupted, it's not the same file, and won't produce the same hash. Hence your torrent client thinks it's a different file that is unrelated to the torrent.