Veeam Agent for Microsoft Windows CBT driver installation fails with "Unable to install Veeam change block tracking driver: Microsoft Windows Security Update KB3033929 is missing."

KB ID: 2931
Product: Veeam Agent for Microsoft Windows | 2.2 | 3.0.2 | 4.0 | 5.0
Published: 2019-04-04
Last Modified: 2022-04-22
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Challenge

When attempting to deploy or install the Veeam CBT driver on a machine running Windows Server 2008 R2 SP1, the following error occurs:
Microsoft Windows Security Update KB3033929 is missing
When attempting to install the Veeam CBT Driver for a standalone Veeam Agent for Microsoft Windows deployment, this error will appear as:
Standalone Install Error
A deployment being managed by Veeam Backup & Replication will appear as:
Managed Deployment Error

Solution

As documented in the Veeam Agent for Microsoft Windows System Requirements, when installing Veeam Agent for Microsoft Windows on a machine running Microsoft Windows Server 2008 R2 SP1, the Veeam CBT driver is supported only if Microsoft Windows update KB3033929 is installed.

Verify that KB3033929 is installed by downloading and running the update. If the following message appears, proceed to the next section for information about bypassing the KB check.

KB3033929 is already install message
Note: KB3033929 was included in the October 2016 Security Monthly Quality Rollup  (KB3185330).
Before creating the registry value on this article, ensure that KB3033929 is installed on the system. If KB3033929 is not installed and the Veeam CBT driver is installed by bypassing the check for KB3033929, the OS will likely fail to boot.

How to Disable KB Check and Install

After verifying that KB3033929 is installed, follow these steps to disable the KB check and proceed with installation/deployment.

  1. Create the following registry value on the Server 2008 R2 SP1 machine where Veeam Agent for Microsoft Windows is failing to install.

    Key Location: HKLM\SOFTWARE\Veeam\Veeam Endpoint Backup\
    Value Name: DisableCBTKBCheck
    Value Type: DWORD (32-Bit) Value
    Value Data: 1
  2. If the Veeam Agent for Microsoft Windows service is present, restart it.
  3. Retry the install/deployment.

More information

Please refer to 'Package Details' tab (Microsoft Update Catalog) for details on updates replacements.
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