EFS-encrypted Files Were Detected (code 1624)
A file backup plan terminates with the following warning message: EFS-encrypted files were detected (code 1624). EFS-encrypted files were found in the backup source and were skipped. To back up EFS-encrypted files, a full backup is required
Some files in the backup source are EFS-encrypted and the Keep EFS encryption option is selected, and the incremental backup attempt was performed. The mechanism of backing up EFS-encrypted files 'as is' (encrypted) requires a full backup.
Force full backup.
- Switch to the Backup Plans tab.
- Find the plan that produced the warning, expand the plan execution control (the play button) and select Force Full Backup.
- Continue with incremental backups.
The EFS-encrypted files are marked with a lock sign in their icons. To check encryption status, right-click on the file, then select Properties. Click Advanced. If the Encrypt contents to secure data check box is selected, the file is EFS-encrypted