Avast! Free Antivirus being free, works for 30 days after installation in trial mode (or 60 days for avast Home 4.8) and requires a license key after that to continue using it. However, you can continue using the program for free and stay protected with Avast.
How to get Avast 5 Free license key -
You need to simply register to get your free license activation key. The 1 year free avast license key is provided absolutely free from avast. The license code works only for Avast Free Antivirus, which is for Home users only.
Register Here to get your free avast! 1 year license. After registering, your free license key will be sent by email within 24 hours. Just enter the license key in the program (Avast > Registration > Insert license key) to continue using it after the trial period.