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This article describes an important update to Azure Backup for Microsoft Azure Recovery Services (MARS) Agent version to 2.0.9250.0, that is used both by Microsoft Azure Backup and the Microsoft Azure Site Recovery service to transport data to Azure.

Important improvements

This update to the MARS Agent supports the new Azure Import/Export APIs for offline seeding with customer owned disks. With this change, customers can face issues with offline seeding using MARS agents older than 2.0.9250.0 that rely on the old Import/Export APIs.

This update also includes fixes for scheduled backups not triggering due to issues with SYSTEM account, MARS agent crashing due to disk being detached, granular error codes for policy configuration failures and improved support for vault immutability & enhanced soft delete.

Update information

Download information

To apply this update, download and install the Microsoft Azure Recovery Services agent from the Microsoft Download Center. 

Download Icon Download the Azure Recovery Services agent update package now.

Note The version for this update of Microsoft Azure Recovery Services agent is 2.0.9250.0.

For more information about how to download Microsoft support files, see the following Microsoft Knowledge Base article:

119591 How to obtain Microsoft support files from online services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Applying the update to multiple servers

Perform the following steps to update multiple servers from the Azure portal

  • Download the installer for the update from the link in this section.

  • Navigate to the Recovery Services Vault where your servers are registered.

  • On the left-side Settings blade, select Backup Infrastructure in the Manage section.

  • Select Protected Servers under Management Servers, and then select Azure Backup Agent as the Backup Management Type.

         Protected Servers

  • On the blade that appears, select a server for which the agent version is earlier than 2.0.9250.0.

  • On the server detail blade, select Connect. This will download a Remote Desktop Connection file that you can use to connect to the server, copy the downloaded agent to the server, and then update it.

        Connect to protected server

  • After you finish updating, you can select other servers that have agent versions that are earlier than 2.0.9250.0, and update the agents on those servers.

Restart information

If you are using Windows Server 2008 (SP2 and R2 SP1, any SKU), you have to restart the computer after you apply this update. Users that have installed MARS Agent on other Windows Server versions don’t have to restart the computer after they apply this update.


If you use System Center Data Protection Manager (SC DPM) or Microsoft Azure Backup Server (MABS) ensure that you are on the latest Update Rollup for the product.


Windows Server 2008 and 2008 R2 are at end of support. Please plan to update these servers to newer operating systems to ensure backup support with the upcoming versions of MARS.

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