Protect your Windows XP PC with Avast Free Antivirus

The most favorite antivirus with more than 230 million users fully protects Windows XP PCs

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Windows 10 full protection

Supports Windows XP

Microsoft stopped supporting Windows XP with security updates, making it more vulnerable and a prime target for hackers. Avast Antivirus will keep your old Windows XP PC protected regardless.

Safe upgrade to Windows 10

Runs smoothly even on Windows XP

AV Comparatives called Avast "the antivirus with the lowest impact on PC performance." It has almost no impact on your Windows XP's performance. Plus, advanced features like Cleanup and Browser Cleanup make things run even faster.

Approved antivirus for Windows 10

Official antivirus for Windows XP

AV Comparatives successfully tested Avast on Windows XP. And being Windows XP's official consumer security software provider is yet another reason why more than 230 million users trust Avast.