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Windows 10 full protection

Get the most out of Windows 8

Use Avast to get great performance from your Windows 8 PC. Not only is there almost no impact on your PC's speed, but you can hurry things up even further with advanced features like Cleanup and Browser Cleanup.

Safe upgrade to Windows 10

Protect your Windows 8 PC against malware

AV Comparatives has successfully tested Avast against malware on Windows 8 and showed it provided 100% protection against 0-day malware attacks.

Approved antivirus for Windows 10

Approved antivirus for Windows 8

Avast is Windows 8's official consumer security software provider – yet another reason why more than 4 million users trust Avast.

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.