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Remove legacy Trellix products

  • Published on Sep 13, 2026
  • 1 minute(s) read
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Due to complexities involved with older legacy software versions such as VirusScan Enterprise release prior to 8.8, there is no directly supported path to Trellix ENS. Particularities within each environment may require a customized migration path provided by Trellix. The migration path discusses steps to remove legacy software using standard product uninstall tasks and prepares your ePolicy Orchestrator - On-premises server to deploy Trellix ENS 10.7.

Uninstall, Reboot and Install clean with Trellix ENS

  1. Before migration:

    1. Check system requirements — Verify that the environment and managed systems where you want to install Trellix ENS meet all the requirements described in:

      1. Windows — KB82761

      2. Macintosh — KB84934

      3. Linux — KB87073

  2. Use ePO - On-prem to create a product deployment task for the existing legacy software.

    Note

    It is recommended that systems having multiple installed Trellix products, such as VirusScan Enterprise, Host Intrusion Prevention, and SiteAdvisor Enterprise, you create separate uninstall tasks as opposed to a single, combined uninstall task.

  3. Within the uninstall task(s), select the desired schedule for the task.

    Note

    A task scheduled to "run immediately," is only expected to execute one time. If the uninstall task fails, it will not run again when selecting this scheduling option.

  4. Select the systems to perform the uninstall task and use ePO to send a Trellix Agent wake-up call. It is important here to allow enough time for successful execution and removal of the existing products. Trellix recommends that you restart systems at his point.

  5. Once removal is complete, you can send an additional Trellix Agent wake-up call so that the existing Trellix Agent reports back the current system properties, thus allowing ePO's System Tree view to confirm that products have been removed successfully.

  6. At this step, if the currently in-use ePO version does not meet the requirements to migrate to Endpoint Security (version 5.9.x or higher), please upgrade ePO now. If your ePO server version is already at 5.9.x or higher, please continue to step 7.

  7. Update the existing Trellix Agent to the latest available version. If the existing Trellix Agent version is already on a supported version, please continue to step 8.

  8. Download and check in the Trellix ENS extensions and software packages and start your ENS deployment.

  9. Once the software deployment is complete, to verify that Trellix ENS installed on your endpoints please check your results.

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