Protect your Windows 8 PC with Avast Free Antivirus
Antivirus with more than 435 million users protects Windows 8 PCs
Get the most out of Windows 8
Use Avast to get great performance from your Windows 8 PC. Not only is there almost no impact on your PC's speed, but you can hurry things up even further with advanced features like Cleanup and Browser Cleanup.
Protect your Windows 8 PC against malware
AV Comparatives has successfully tested Avast against malware on Windows 8 and showed it provided 100% protection against 0-day malware attacks.
Approved antivirus for Windows 8
Avast is Windows 8's official consumer security software provider – yet another reason why more than 435 million users trust Avast.
System Requirements


The people have spoken
How to install Avast Antivirus for Windows 8
It’s easy to start protecting your PC or laptop against viruses and malware with the latest version of Avast antivirus for Windows 8.
Just follow these easy steps:
- Download the installer by clicking here.
- Right-click the installer and click “run as administrator”.
- Click “Install”.
- When the progress bar vanishes, your device is protected.
And that's it! Your device is now secure.
FAQ
Does Windows 8 need an antivirus?
How do you check for viruses on Windows 8?
How do I enable antivirus on Windows 8?
- Download the antivirus software of your choice
- Double-click the file when it’s finished downloading
- Run the installation wizard and follow the instructions
- Once the installation wizard is complete, open the newly-installed app