Is Avast Antivirus still supported on Windows XP, Windows Vista and Windows 7?

Avast no longer provides support for Avast Free Antivirus and Avast Premium Security (previously Avast Premier, Avast Pro Antivirus, and Avast Internet Security) installed on the following operating systems:

• Windows 7 Service Pack 1 with Convenient Rollup Update or later, any Edition (32 or 64-bit)
• Microsoft Windows Vista Home Basic / Home Premium / Business / Enterprise / Ultimate - Service Pack 2, 32 / 64-bit
• Microsoft Windows XP Home / Professional / Media Center Edition - Service Pack 3, 32-bit

Although you can still download and use Avast Antivirus on these operating systems, you will not receive application updates, and we are unable to provide technical support. Therefore, we strongly advise upgrading to newer versions of Windows and Avast Antivirus to access enhanced features and higher detection rates.

Which Avast Antivirus versions are still compatible with Windows XP, Windows Vista, and Windows 7?

The final Avast Antivirus version that can be used on Windows XP, and Windows Vista is version 18.8. The final Avast Antivirus version that can be used on Windows 7 is version 21.1. Users with Avast Antivirus on these Windows versions remain on version 18.8 and no longer receive application updates.

How can I update my Windows PC and Avast Antivirus?

1. For information on upgrading to a supported version of Windows, visit the following Microsoft Support page:
   • Microsoft Support ▸ What does it mean if Windows isn't supported?
2. Uninstall your Avast Antivirus. For instructions, refer to the following article: Using the Avast Uninstall Tool
3. Install your preferred Avast Antivirus app:
   • Installing Avast Free Antivirus
   • Installing Avast Premium Security
   If you install Avast Premium Security, you also need to activate the app. For instructions, refer to the following article: Activating Avast Premium Security.

For detailed instructions on how to keep your Avast Antivirus application version up to date, refer to the following article: Updating Avast Antivirus.

Why should I update my Windows PC and Avast Antivirus versions?

Keeping Avast Antivirus up to date gives you better protection and smoother user experience. Some of the advantages are:

• Better detection rates
• Easier technical support
• Fewer bugs and issues that still might exist in older versions
• Further application updates to ensure the best protection for your PC

Can I still receive virus definition updates on versions that are no longer supported?

Yes. Avast Antivirus version 18.8 on Windows XP and Windows Vista, and version 21.1 on Windows 7, still receive virus definition updates which allow us to identify malware and other threats on your PC.

Can I contact Avast Support when I am using a version that is no longer supported?

Avast support will ask you to update your operating system to Windows 8 or later before we can assist you with Avast Premium Security.

What if I continue to use a version of Avast Antivirus that is no longer supported?

Avast Antivirus version 18.8 for Windows XP and Windows Vista, and version 21.1 for Windows 7, will continue to receive virus definition updates. However, we recommend upgrading to the newest version to benefit from the best detection rates and newest features.

If you are using Avast Antivirus on Windows XP, Windows Vista, and Windows 7 and require technical support, our support team will ask you to update to Windows 8 or later.