PC World has selected eight great security tools that'll do the job for free.

在电脑世界里有8种免费的杀毒工具。

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You will also find other free software for your phone and PC.

您还可以找到其他免费软件为您的手机和个人电脑。

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PC-to-PC calls anywhere in the world are free.

计算机到计算机的呼叫是免费的。

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Now, free Internet software threatens to replace PC-based software.

现在，基于PC的软件受到被免费网络软件取代的威胁。

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Designed to: Keep your PC safe, error-free, and running at top speed.

保护系统安全，修复错误，以较高的速度运行。

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Designed to: Keep your PC safe, error-free, and running at top speed.

保护系统安全，修复错误，以较高的速度运行。

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