Key Features
Comprehensive Security: Protects against viruses, ransomware, phishing, and malicious websites with real-time scanning, firewall, and anti-scam defenses. 
Browser & Email Protection: Includes Email Guardian to flag suspicious attachments and prevents spoofed or phishing websites—ideal for safe browsing and banking. 
Multi-Device Option: Although this plan covers only one device, the Premium Security tier supports up to 10 devices in other subscription types. 
Stay Safe Guarantee: Keeps your device safe with Avast’s virus removal service; if they can't solve the issue, you may be eligible for a refund, as long as auto-renewal remains active. 
System Requirements
Windows: Windows 7 (SP 2), 8, 8.1, 10, and 11 (both 32-bit and 64-bit; excludes Starter and RT editions). Requires at least 4 GB RAM and 3 GB of free disk space. 
macOS, Android, iOS: Supported via separate single-device subscriptions—system requirements vary by platform.
Warranty & Guarantee
Money-Back Guarantee: Avast offers a 30-day refund policy if you are not satisfied with the product. 
Stay Safe Guarantee: Continues as long as you keep auto-renewal enabled, providing virus removal assistance or full refund if Avast fails to clean your device.