6612: Acronis Backup & Recovery 10: An Attempt to Update Acronis Agent for Windows from MSI File Errors Out with "Another version of this product is already installed"

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Operating Systems: 

Update the product from the installation package or from the Acronis Management Console

This article applies to:

  • Acronis Backup & Recovery 10 Advanced Server
  • Acronis Backup & Recovery 10 Server for Windows (Standalone)
  • Acronis Backup & Recovery 10 Advanced Server - Small Business Server Edition
  • Acronis Backup & Recovery 10 Advanced Workstation
  • Acronis Backup & Recovery 10 Workstation (Standalone)
  • Acronis Backup & Recovery 10 Advanced Server - Virtual Edition


  1. You are attempting to update the Acronis Agent for Windows by executing the extracted MSI file - AcronisAgentWindows.msi;
  2. The operation fails with the following error message:

    Another version of this product is already installed.
    Installation of this version cannot continue. To
    configure or remove the existing version of this product,
    use Add/Remove Programs on the Control Panel.


In order for the MSI file to perform an update, the MSI file has to be launched with the re-install parameter. This is described in the section below.


  1. Update the Acronis Agent by running the EXE installation package and clicking Update:

    (!) You can download the main EXE package from your account, please see Downloading an Installation File of Acronis Software.

  2. If you have an advanced edition of the product, update the Acronis Agent(s) for Windows using the Remote installation wizard:
    • Run Acronis Management Console;
    • Select Install Acronis components:

    • Proceed with the wizard.
  3. Additionally, the Acronis Agent can be updated by creating a transformation file and deploying the update via a Group policy. Please see the user guide for a detailed description.

More information

See also:


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