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Clé pour avast Registration of avast! 4 Hom



Registration of avast! 4 Home Edition

Please choose the right option ...
I'm a new user and I need a registration key for avast! Home Edition
I'm a registered user, but I lost my registration key
I'm a registered user and my registration key has expired, I need a new one
Secure (SSL) version of registration form is here.
Welcome to the free registration of avast! Home Edition, the ultimate antivirus for home, non-commercial use. Both conditions should be met! For commercial environments, please use another product - avast! Professional Edition.

avast! 4 Home Edition works for 60 days after the installation in demo mode. You will obtain your FREE license key by E-mail after the registration. The license key is valid for 1 year. After one year you will need to just re-register.

Before making your registration, please read the following information:

  • The free registration of avast! 4 Home Edition is performed by a robot which sends a message containing the license key to the email address you entered in the registration form.
    The mail is sent from:
    and the mailbox specified for reply is:
  • Listed below are several reason why you may not receive your license key:
    1. Filling in an incorrect E-mail address - the robot will send the message to this wrong mailbox and you won't receive it!
    2. Your mailbox is full - the registration message can't be stored in your mailbox and you won't receive it!
    3. You or your Internet provider use a so called AntiSpam program and it blocks the registration mail as a spam. Please ensure that emails from the above mentioned addresses are authorized to enter your mailbox.

After you verify that everything is OK, you are ready to register.

Registration language: 

City / Town:
Region / State:
I understand that I have the right to use this program for non-commercial home use only, both conditions must be met as part of the EULA

Here you can enter any message for the ALWIL Software team:

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To contact our technical support, mail to
Support  avast! Home Registration