我們支援的是瀏覽器,不是恐龍。請更新您的瀏覽器,才能確實看到這個網頁的內容。
Windows 10 full protection

Important info for Windows Vista users

Rest assured that Avast Free Antivirus still receives regular virus definition updates to protect Windows Vista owners. But we can unfortunately no longer provide program updates, new features, bug fixes, or support for Windows Vista. Therefore, we highly recommend that you upgrade to the latest version of Windows. (Remember, Microsoft stopped issuing security updates for Windows Vista back in 2017.)

Safe upgrade to Windows 10

Get complete protection for Windows Vista

Windows Vista gives you next to no protection. To get serious about security on Windows Vista, Avast provides advanced features like intelligent antivirus, Home Network Security, Software Updater and more.

Approved antivirus for Windows 10

Official Windows Vista antivirus

AV Comparatives successfully tested Avast on Windows Vista. Another reason why more than 4 million users trust Avast – it's Windows Vista's official consumer security software provider.

Avast 防毒軟體與 Windows 108.187VistaXP SP3 相容

Avast also offers you security solutions for your Android and Mac

很多人都分享了自己的經驗

我們也想聽聽您的看法。因為您是我們努力不懈的動力。

Avast Free Antivirus for Windows 10
5

It's clean, easy, and works.

Avast Free Antivirus for Windows 10
4

It's very easy program

Avast Free Antivirus for Windows 10
5

easy to used < its the best

Avast Free Antivirus for Windows 10
5

I love Avast, I have used it for at least 5 years or maybe more. will continue to do so

Avast Free Antivirus for Windows 10
5

easy to used < its the best

Avast Free Antivirus for Windows 10
5

easy to use and download

Avast Free Antivirus for Windows 10
5

I love that it protects my computer, cell phone, and even my iPod. And I only have to have one account! Super easy

Avast Free Antivirus for Windows 10
5

Years and years using this software, I like it and lots of friends and family are using it too. If your computer is infected it goes straight to the base of your O.S. and kill the virus. Love it !

Avast Free Antivirus for Windows 10
5

It is the best antivirus on the market. Very efficient and easy to use. Would definitely use again and again.