Thanks people, thanks aheinecke, for your support.

Hi jmrexach,

I almost forget. If I zip the directory and the encypher the .zip file through Kleopatra, everything goes ok.

Have you used a very old version (< 3 ) to create the directory? I know you said that you are currently using Gpg4win-3.1.5 but maybe you have used an older version to create the archive.

The cyphered directory is a Windows 10 directory.