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10 Best Free Antivirus Software for Windows in 2024

Here are the best free antivirus programs for Windows PCs or laptops with excellent malware protection and a wide range of internet security features.

Avast | 下載免費防毒軟體和VPN

輕輕鬆鬆地執行智能掃描來找出軟體、檔案和應用程式中的漏洞，還能在雲端分析可疑檔案、接收威脅警示等。安裝和使用都很簡單. Avast Free Antivirus 安裝迅速，安裝完成後 ...

Bitdefender Free Antivirus for Windows

100% free antivirus protection. Get an antivirus that is totally free, no hidden costs, no trials required. Simply download and install the product by creating ...

Free Antivirus Download

Free antivirus software trial with all-in-one protection · Get started with McAfee Total Protection · Live your life online freely and confidently · Live your ...

Free Antivirus Software for all Devices

Download the free antivirus protection with Kaspersky Free. This top-rated cloud antivirus protects your family against viruses, malware, ransomware, ...

The Best Free Antivirus Software for 2024

Microsoft Defender isn't bad these days, but it's still not enough to fully protect your PC. You don't have to pay extra, though.

下載Antivirus 享受最出色的病毒防護

下載Avira Free Antivirus · 防護效果榮獲表彰，適用於Windows、Mac、Android 與iOS。 · 享受屢獲大獎的產品 · 最佳防毒軟體 · 最佳效能 · 德國品質安全 · 我們的技術 · 我們保護 ...

下載PC 版免費防毒軟體

下載免費防毒軟體──超過30 年的網路安全經驗

使用Avast Free Antivirus 軟體抵禦病毒與惡意軟體，持續保護自身安全。Avast 捍衛全球數億名使用者的安全與隱私。

免費的Windows 防毒軟體實現最佳即時防護

Avira 免費安全套件保護您的個人資料、軟體、網站瀏覽、搜尋，甚至是您的家用網路。 Antivirus. 即時抵禦惡意程式及線上威脅。 Software Updater. 確保軟體與驅動 ...