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Avast Free Antivirus can be used free of charge for home and non-commercial use. You must register for an Avast Account within 30 days of download.
If you already have an Avast Account, you can login in the Account section of the main menu. If you do not have an Avast account, click Register now.
A free license registration is valid for 12 months.
Avast Pro antivirus, Avast Internet Security and Avast Premier can be downloaded and used free of charge for a 30-day trial period. After the trial period, you must purchase a license to continue program service.
Licenses can be purchased for single or multiple computers, and for 1, 2, or 3 years.
You can purchase a license from the Store section in Avast, or at the official website www.avast.com.
After purchasing a license to renew or upgrade protection, you must activate the subscription on each computer covered by the license.
Save the license to your computer, open Settings ▸ Subscription, and click Insert license file. Then select the saved file in the window which appears.
If you have activated the Ongoing Protection Service (Auto-Renewal), your subscription is renewed automatically when your current license is due to expire. You are notified in advance via email.
You can manage the auto-renewal option for your order either by contacting Avast online customer support directly, or by visiting the following FAQ articles: