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How to activate ESET Version 9 with a License Key

Description: This article will show how to activate ESET Version 9 using a license key. Note: A license key may have been referred to as an activation key or a serial number in previous versions of ESET.

  1. Choose the ESET icon at the lower right corner of the screen. The arrow to show hidden icons may need to be opened first to show the icon.
    Windows System Tray, ESET Icon
  2. Select Help and Support located on the left side of the window.
    ESET Program, Help and Support
  3. Select Change License at the bottom right hand corner.
    ESET Help and Support, Change License
  4. Enter the License Key in the box below I have a license already. Once entered, select Activate.
    ESET Program Product Activation, License Key, Activate
  5. The License Key will be verified and an Activation was Successful message is displayed. Select Done.
    ESET Program Activation Successful, Done
  6. ESET is now successfully activated.
    ESET Program Protected message