Malware
Malicious software can compromise files and personal data.
Free Antivirus for Windows
Your Windows PC Is Exposed.Get Protected Now.
Free protection against viruses, malware, phishing, ransomware and dangerous downloads.
Download Avast Free →
Windows PC · Avast installer · Free download
✓ 400M+ users worldwide
✓ Free protection
✓ Windows compatible
Avast Free Antivirus
Protection features
4
Key layers
Built for Windows
Protection that works in the background.
Explore Avast protection features for everyday browsing, files and downloads.
Real-Time Protection ✓
Web Protection ✓
Malware Protection ✓
Ransomware Protection ✓
Protection against
Malware
Phishing
Ransomware
Dangerous downloads
Know the risk
One Bad Click Can Be Enough.
Online threats can target your files, accounts and personal information. Avast helps you stay better protected.
Phishing
Fake sites and messages can try to steal sensitive information.
Ransomware
Attackers can target important files and demand payment.
Dangerous Downloads
Malicious files can put your Windows PC at risk.
Don't Wait to Protect Your PC.
Get free Avast protection for Windows.
Download. Install. Protect.
01 · DOWNLOAD
Get the installer
Download the Avast Windows installer.
→02 · INSTALL
Run the setup
Open the .exe installer and follow the setup instructions.
→03 · PROTECT
Stay protected
Start using Avast protection on your Windows PC.
Security recognition
AAV-TEST
✓AV-Comparatives
PPCMag
Ready to Protect Your PC?
Avast Free Antivirus for Windows.
Download Avast Free →Windows PC · Avast installer · Free download