Download a free antivirus for your Windows PC, Mac, or laptop to help detect and isolate potential cyberthreats while optimizing your home Wi-Fi security and more.

Download cybersecurity software to protect your device with more than just basic antivirus protection. Avast offers strong free security features.

Download cybersecurity software to protect your device with more than just basic antivirus protection. Avast offers strong free security features.

Download cybersecurity software to protect your device with more than just basic antivirus protection. Avast offers strong free security features.

2022年2月2日 · Get the Best Free Virus Protection. Download free Avast One for PC to remove and prevent viruses and other malware threats. Enjoy 24/7 protection.

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Avast Free Antivirus is our essential security software for stopping malware, spyware, and ransomware without slowing down your PC.

Avast’s antivirus scans for security and performance issues and helps you to fix them instantly. It also protects you in real time by analyzing unknown files long before they reach your Windows …

Improve Mac's security & privacy with free antivirus software for Mac. Scan and stop malware & find Wi-Fi security weaknesses. Download and use for free!