When seeking free antivirus options after a subscription ends, Avast and AVG Free are highly recommended by users for their effectiveness and low resource usage. Avast has been praised for its comprehensive features and reliability, while AVG Free is noted for its strong performance and ease of use. Additionally, a suggestion was made to download a specific Google pack to receive a free six-month subscription to Norton Antivirus 2005, although opinions on Norton’s effectiveness vary. Overall, Avast and AVG Free emerge as the top choices for free antivirus solutions.