If you are using Windows Encrypted File Service (EFS) file encryption on a computer running Windows Vista and the anti-virus auto-protect feature of Symantec (tested with 10.2.0.76), it has been reported that the encrypted files may become corrupted. There appears no way to recover the corrupted files.

If Symantec auto-protect is disabled, the EFS encrypted files will remain corrupted. If Symantec auto- protect remains disabled, any new files that are encrypted via EFS remain accessible. This problem has been reported by James Madison University and Virginia Tech University.