Avast offers free protection for everyone, but in order to use it, you need to obtain a serial key. Why it needs a serial key if it’s a free product? That’s a really good question, but you probably need to ask Avast directly. Anyway, for some users, it may a struggle to obtain such a key, so we are giving it out to everyone. The serial key below will give you completely free protection until December 2040.

We will also explain to you how to insert it into your Avast using a step-by-step approach and screenshots, so really everyone can do it. Even if you are a beginner user.

Please note the serial key is valid only for Avast Free Antivirus 2019 running on Windows XP, 7, 8 or 10. In case you don’t have it downloaded, go to our Downloads page. If you are looking for a serial key for Avast Pro Antivirus, Avast Internet Security, or Avast Premier, there isn’t any free one. The only way to get one is to actually purchase a premium version.

Avast Free Antivirus 2019 Serial Key Valid Until December 2040

Below is the free serial key which you can use for personal purposes. Simply copy it to the clipboard using CTRL + C and insert it into your Avast.

XHZ8FT-JUAKMJ-4KL496

If you are using Avast version 7 or older please use the following universal key.

W11332244H9900A0420-8MRTR8W5

If you don’t know how to insert it, follow the next section.

How to Insert the Key Into Avast

  1. Open your Avast interface and go to “Menu” » “My licenses“. You can also get there by right-clicking on the systray Avast icon and selecting “Registration information
  2. Click on “Enter a valid activation code
  3. Enter the license key and confirm by clicking “ENTER”
  4. Now you should be able to use the free protection for the full year valid until 03/19/2020. You can check the subscription details in the “My licenses” area

If you have done everything correctly, you should see the following information.

Avast Free Antivirus Activation Code Valid Until March 2020

Avast Free Antivirus Activation Code Valid Until March 2020

What’s the Difference Between Serial Key and Activation Code

Basically none. Some users are referring to this unique code as a serial key while some as an activation code. Serial key is being the more old-school term. Within the product user interface, Avast always talks about the activation code.

Avast serial key for all products is always 18 characters long divided into 3 sections (6-6-6). Sometimes this piece of characters is also being called serial number, but that’s wrong in case of Avast as it always contains both characters and numbers.

Additional Notes

Although we have used Avast Free Antivirus 2019 screenshots in this article, these steps are also applicable for all Avast Antivirus solutions (i.e. also for Avast Pro Antivirus, Avast Internet Security, or Avast Premier) running the latest version available.

Steps are relevant for all Windows versions – Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1 and Windows 10 (including Anniversary Update).

Written by Paul B.

My name is Paul and I love Avast since the Home Edition v4.8 (2008). I am recommending it to all my friends, but I realized they don't know how to use it. So I started this site in order to help others getting maximum from this awesome antivirus. Feel free to contact me via Facebook, comments below or this form.

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