Download the free trial from here. Open the downloaded ESET program. Go to Help and support > Activate License. Type or copy/paste your ESET-issued activation key into the Activation key field and click Continue. Ensure you type the activation key exactly as it is, including the hyphens. If you copy/paste the activation key, ensure you do not accidentally select additional space around the text. Click Activate. Click Done. You have successfully activated your product. In case of a problem with activation, please select Sri Lanka as a country and try again. ---------------------------------------------------------------------- Alternative way of activation(in case the above-mentioned did not work for you) Navigate to https://home.eset.com/ Create a new account or sign into an existing one. Download the software. Install your ESET software. Log into the ESET software client with the account on which the license has been activated. *In case of a problem with activation, please select Sri Lanka as a country and try again.