Over 200 million devices rely on avast! - more than any other antivirus. And it just got even better.

After 25 years of innovation, still the most trusted antivirus in the world
If you haven't heard of AVAST, we're only the most trusted name in antivirus, actively protecting more than 200 million PCs, Macs and Androids. So many people trust us because we've been protecting devices and data for 25 years, in over 40 languages (more than any other antivirus solution), on every populated continent in the world.

Need more than that? Secure even your financial transactions
Your money really deserves a solid level of protection against theft. With avast! SafeZone, you can set your favorite banking or shopping sites to automatically launch in a 'virtual window', to ensure that all of your sensitive financial transactions stay private. Perfect for auction sites, buying concert tickets, booking with hotels or airlines, online gaming, or any sort of monetary transfer, it now has a sleeker look and is süper-easy to launch and use.

And if that's not enough… Increase your security by automatically updating other programs on your PC
Hackers count on people to use outdated versions of such applications as browsers or PDF readers, so most virus and malware threats exploit security holes that newer versions fix. As it's annoying but vital to update all those programs manually, Premier's automatic Software Updater does it for you - to make sure you're using the latest versions to close those security holes.



System Requirements
You need at least Windows XP (with SP2) installed. Windows Vista, 7, 8, and even 8.1 are fully supported (unless your device runs the Starter or RT edition) in both the 32- and 64-bit variant. A 10-year old Pentium 3 processor will do, with 128 MB RAM and 600 MB of hard-drive space. And now imagine the stellar performance with your new hardware!


Changes in avast! 2014 R3 SP1 (9.0.2018):

• Stream Filtering -- fixed stability and compatibility issues, it's running smooth and fast now, so no more browsing problems Smile
• Firewall -- the firewall should be more stable and with better compatibility with other network applications. we spent a lot time analyzing various dumps you provided to us to increase
your confidence level.
• Android protection - we can protect (if you wish) your Android phones and tablets with avast! Free Mobile Security (through your active Google Account) automatically (during the installation
or update).
• A lot of fixed issues