After payment, you will instantly receive an activation code for Premium Security in the form of 18 characters of the format: XXXXXX-XXXXXX-XXXXXX

More security. The world´s largest threat detection network, cloud-based artificial intelligence and lightning-fast behavior analysis make our antivirus stand out from the rest.
More privacy. Blocking attempts by spyware to gain access to tax, medical and other sensitive documents. Prevent surveillance through the webcam by overly curious people.
Better than titled version. Avast free antivirus received the "Product of the Year" award from the AV-Comparatives laboratory. Avast Premium Security offers the same superior level of protection with a host of useful features.