PowerSpec computers come with 90 days of ESET antivirus. Unlike other brands, PowerSpec does not pre-install ESET in case you prefer to run a different antivirus program, but your system will come with the ESET Activation Helper tool to help you activate and install ESET. Whether you want to run ESET or not, we do strongly advise having some type of antivirus software on your system. If you want to take advantage of the 90 days of ESET, follow these steps:Using the Activation Helper1. When you boot your PowerSpec computer for the first time, the ESET Activation Helper window will appear automatically. Select I want to activate and install now. 2. This will open a new window on your computer with the ESET activation form. Fill out all the required fields including the serial number of your PowerSpec computer. You can find the serial number of your PowerSpec computer on the computer itself on a white sticker, or on your receipt. 3. Once the activation form is submitted, scroll to the top to view the ESET license key. Copy or save the license key as it will be needed during installation. License information will also be emailed to the email address listed on the ESET activation form.4. Follow the instructions in the following article to install the current version of ESET NOD32 Antivirus. https://support.eset.com/en/kb3418-download-and-install-eset-nod32-antivirusWhat if I can't get to the Activation Helper?If you selected the option to not install ESET or otherwise can't get the Activation Helper back:1. Go to https://www.eset.com/us/activate/microcenter in any web browser.2. Select "I'm activating a new license" 3. Fill out all the required fields including the serial number of your PowerSpec computer. What if there's an error or I can't register my license?Sometimes the activation doesn't work. If you run into trouble, feel free to comment below for assistance. We can help by submitting a request to add the Serial Number to the ESET database and get the trial version downloaded for you in the meantime.