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Regularly updating ESET Endpoint Security is the best method to ensure the maximum level of security on your computer. The Update module ensures that both the program modules and the system components are always up-to-date.

By clicking Update in the main program window, you can view the current update status including the date and time of the last successful update and if an update is needed.

In addition to automatic updates, you can click Check for updates to trigger a manual update. Regularly updating the program modules and components is an important aspect of maintaining complete protection against malicious code. Please pay attention to the product modules configuration and operation. You must activate your product by using your License key to receive updates. If you did not do so during installation, you will need to activate ESET Endpoint Security to access ESET update servers. Your License key was sent to you in an email from ESET after purchasing ESET Endpoint Security.

If you activate ESET Endpoint Security with Offline license file without Username and Password and try to update, the red information Modules update failed signals you can download updates from the mirror only.


Current version—The ESET Endpoint Security build number.

Last successful update—The date and time of the last successful update. Ensure it refers to a recent date, which means that the detection engine is current.

Last successful check for updates—The date and time of the last successful attempt to update modules.

Show all modules—Click the link to open the list of installed modules and check the version and the last update of a module.

Update process

After clicking Check for updates, the download process begins. A download progress bar and remaining time to download will be displayed. To interrupt the update, click Cancel update.



Under normal circumstances, you will see the green check mark in the Update window, indicating that the program is up-to-date. If you do not see a green check mark, the program is out-of-date and is more vulnerable to infection. Please update the program modules as soon as possible.

Unsuccessful update

Detection engine out of date—This error will appear after several unsuccessful attempts to update modules. We recommend that you check the update settings. The most common reason for this error is incorrectly entered authentication data or incorrectly configured connection settings.

The previous notification is related to the following two Modules update failed messages about unsuccessful updates:

  1. Invalid license—Your license is not active. We recommend that you check your authentication data. Click Help and support > Change license from the main menu to enter a new license key.
  1. An error occurred while downloading update files—A possible cause of the error is incorrect Internet connection settings. We recommend that you check your internet connectivity (by opening any website in your web browser). If the website does not open, it is likely that an internet connection is not established or there are connectivity problems with your computer. Ensure you have an active internet connection from your Internet Service Provider (ISP).



For more information, see the ESET Knowledgebase article.