62364: Acronis Cyber Backup: Installation fails with fatal error if Avast is installed

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Last update: 30-04-2021

Symptoms

  1. You have a Windows machine with Avast antivirus installed
  2. When you try to install Agent for Windows, installation fails with the following error:

    Fatal error during installation

  3. Installation log contains the following line:

    install::Install, res=5

Cause

Conflict with Avast antivirus

Solution

Uninstall Avast antivirus, reboot the machine, then install Agent for Windows. 

After the installation completes successfully, you can reinstall Avast - the antivirus interferes only with installation, there are no conflicts with a working Agent.

More information

Acronis Development team is working in fixing this issue in future versions of the product.

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