During the installation of PSE 7.40 we received a copy file message " Install Completed with error. Return Code File isFileNot found". What could be the reason for the message.
This error is due to the reason that the installation files of the PSE 7.40 are not proper and some file is either corrupted or missing from the installation setup files.
Kindly download/copy the PSE installation files again then install PSE again to avoid such errors.