Upgrade of your ESET application has failed

We could not upgrade your legacy application version to the latest possible version. Therefore, you are using a application version that has reached End of Life status and will be disconnected from ESET servers.

 

What should I do?

Step one

Check the current installation status of your ESET application

Do you have an account with Administrator privileges?
You need an account with Administrator privileges. If you are not an Administrator, you cannot upgrade or uninstall. Contact your system administrator to upgrade.

Is the ESET application working properly after a failed upgrade?
After the failed upgrade, open the main program window to verify the ESET application is working correctly.
If the upgrade failed and the ESET application is not accessible, or the ESET application reports a warning Security alert with multiple messages, proceed to step 2 as soon as possible.

Important

If you need help and would like to contact ESET Technical Support:

•The upgrade failed with a {GET_ERROR} error code.

•You have {GET_PRODUCT} {GET_VERSION} running on {GET_OSNAME} {GET_BITNESS}.

Step three

Install version 6.5

•Select the appropriate language and download the version of the appropriate package:

•To install a version 6.5 ESET endpoint application, refer to Install or upgrade ESET Endpoint Security or ESET Endpoint Antivirus on a client workstation (6.x) and skip to step 2 in the Knowledgebase article.

Step four

Plan operating system upgrade

Upgrade to the latest version of Windows 11 as soon as possible.

Windows 7 and Windows 10 users unable to upgrade to Windows 11 need to install their latest Windows updates.

•Install the latest Windows 7 updates

•Install the latest Windows 10 updates

Last updated: April 28, 2026

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