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Error="Access denied. " (file backup on EFS encrypted data)

Brad Alexander
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  1. Product Version:
    2. ServosityPro: All
    OS: Windows
  2. Problem Description:
    3. When performing backup on data encrypted with Windows Encrypting File System (EFS), the following message is received in the backup report:
    Backup Logs
     No.  Type  Timestamp  Backup Logs
    1 Info YYYY/MM/DD hh:mm Start [ Windows platform (Test), ServosityPro 5.x.x.x ]
    2 Info YYYY/MM/DD hh:mm Start running pre-commands
    3 ...  ...  ...
    *  Error  YYYY/MM/DD hh:mm [Error][New file] File="Directory_Path\File" Error="Access denied. "
  3. Cause:
    4. The current version of ServosityPro/ServosityStandard does not support the backup of EFS encrypted files.
  4. Resolution:
    5. (For ServosityPro only) As a workaround, please try the following:

    1. Use the pre-backup command of ServosityProto backup the EFS encrypted data with NTBackup
    2. Perform a backup on the *.bkf file (C:\backup.bkf) with ServosityPro

    Notes:
    Data that is backed up or restored from this method can only be read or modified by the system user who had encrypted the data.
  5. Also See:
    6. Sample NTBackup command: 

           Example:
           >ntbackup backup C:\data /j "Job Name" /f "C:\backup.bkf"

    Notes:
    The sample above assumes that that EFS encrypted is located at C:\data, and the result backup.bkf file will be placed under the C:\ directory.
  6. Other Info:
    7. http://support.microsoft.com/kb/223316
    http://support.microsoft.com/kb/241201
    http://support.microsoft.com/kb/814583