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How to activate ESET Endpoint Security

After installation is complete, you will be prompted to activate your product.

There are several methods for activating your product. Availability of a particular activation scenario in the activation window may vary depending on the country, and the means of distribution (ESET web page, installer type .msi or .exe, etc.).

To activate your copy of ESET Endpoint Security directly from the program, open the ESET Endpoint Security main program window and in the main menu, click Help and support > Activate product or Protection status > Activate product.

You can use any of the following methods to activate ESET Endpoint Security:

  • Use a purchased License Key – A unique string in the format XXXX-XXXX-XXXX-XXXX-XXXX which is used for identification of the license owner and for activation of the license.
  • ESET Business Account – An account created on the ESET Business Account portal with credentials (email address + password). This method allows you to manage multiple licenses from one location.
  • Offline License – An automatically generated file that will be transferred to the ESET product to provide license information. If a license allows you to download an offline license file (.lf) that file can be used to perform offline activation. The number of offline licenses will be subtracted from the total number of available licenses. For more details about generation of an offline file see the ESET Business Account Online user guide.

Click Activate later if your computer is a member of managed network and your administrator will perform remote activation via ESET PROTECT. You can also use this option if you would like to activate this client at a later time.

If you have a Username and Password used for activation of older ESET products and do not know how to activate ESET Endpoint Security, convert your legacy credentials to a License key.

MONITOR_RED Failed product activation?

You can change your product license at any time. To do so, click Help and support > Change license in the main program window. You will see the public license ID used to identify your license to ESET Support. The Username under which your computer is registered is stored in the About section, which you can view by right-clicking the system tray icon TRAY_ICON.


ESET PROTECT 7.2 or ESET PROTECT 9 can activate client computers silently using licenses made available by the administrator. For instructions to do so, see the ESET PROTECT Online help.