Your registration is valid for 12 months and needs to be renewed when that time has elapsed. This can be done simply by filling in Avast’s registration form and submitting it to receive a new key via email and inserting the new key into the program. To do that, go here:
http://www.avast.com/eng/home-registration.phpand find the orange link in about the center of the page that says:
“I’m a registered user and my registration key has expired. I need a new one.”
Click on that link, and it will take you to the registration form. Fill in the registration form and submit it. You will get an email with your new registration key.
Copy your new key from the email and insert the license key into Avast! this way:
1. Right-click the blue icon representing the resident protection in the system tray (the blue ball with the “a” in it) and choose "About avast!…" from the popup menu that appears.
2. Press the "License key" button in the lower right corner.
3. In the window that appears, insert (paste) the license key you copied from the email into the text dialog box.
4. Press OK. Press ok again to close the About Avast! window.
That’s it! you should be good to go!
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Repa