Upgrades to Backup Exec 2010 fail with "FATAL ERROR: Error 1606. Could not access network location \IDR\Data."

Upgrades to Backup Exec 2010 fail with "FATAL ERROR: Error 1606. Could not access network location \IDR\Data."

  • Article ID:100000712
  • Last Published:
  • Product(s):Backup Exec


Upgrades to Backup Exec 2010 fail with "FATAL ERROR: Error 1606. Could not access network location \IDR\Data."


The above failure occurs on systems that were previously upgraded from another version of Backup Exec. The issue is caused by the Microsoft's Installer (MSI) database listing multiple installations of Backup Exec, which causes the 2010 installer to default to the older version of Backup Exec when looking for the upgrade files.


Change the following registry key to match the version of Backup Exec which you are currently upgrading from:

Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.

HKLM\SOFTWARE\Symantec\Backup Exec For Windows\Backup Exec\13.0\Install\Upgrade Version

Possible Values:

Backup Exec Release Product Version
BEWS 11d 6235 11.0.6235.0
BEWS 11d 7170 11.0.7170.0
BEWS 12.0 12.0.1364.0
BEWS 12.5 12.5.2213.0
BEWS 2010 13.0.2896
BEWS 2010 R2 13.0.4164
BEWS 2010 R3 13.0.5204

After performing these two steps, the upgrade should complete as expected.

Veritas Corporation has acknowledged that the above-mentioned issue is present in the current version(s) of the product(s) mentioned at the end of this article. Veritas Corporation is committed to product quality and satisfied customers. There are no plans to address this issue by way of a patch or hotfix in the current or previous versions of the software at the present time. However, the issue is currently scheduled to be addressed in the next major revision of the product. Please be sure to refer back to this document periodically as any changes to the status of the defect will be reflected here.  Please note that Veritas Corporation reserves the right to remove any fix from the targeted release if it does not pass quality assurance tests.  Veritas's plans are subject to change and any action taken by you based on the above information or your reliance upon the above information is made at your own risk.

Please contact your Veritas Sales representative or the Veritas Sales group for upgrade information including upgrade eligibility to the release containing the resolution for this issue.  For information on how to contact Veritas Sales, please see  https://www.veritas.com

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