Right click on folder containing one or more encrypted files and select Decrypt or Decrypt and Verify. Request fails with message "Error returned by the GnuPG user interface: Invalid argument"
Please tell us more details on how we can replicate your problem. Which Windows version, any non-standard software installed, non-standard installation direcories etc. You may also provide the output of
which you need to run in a shell (Windows command processor, cmd.exe). To put the output into a file use
gpgconf --show-versions >gnupg-version.txt
and attach that file to this report.