Windows Vista uses up a large amount of your computer's performance. Avast, on the other hand, has almost no impact. On top of this, advanced features such as Cleanup and Browser Cleanup further improve your PC's performance.
Windows Vista gives you next to no protection. To get serious about security on Windows Vista, Avast provides advanced features like intelligent antivirus, Home Network Security, Software Updater and more.
AV Comparatives successfully tested Avast on Windows Vista. Another reason why more than 230 million users trust Avast – it's Windows Vista's official consumer security software provider.