You must have Windows XP SP2 installed before you apply this update.

意思是说，你要先安装sp2，才能安装这个更新。

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File sharing is enabled in several scenarios though it is disabled by default in XP SP2 and newer operating systems.

文件共享是启用的几个情景虽然这是默认情况下禁用在XP SP2和更新的作业系统。

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If this issue has already occurred, uninstall this release candidate, install Windows XP SP2, and then reinstall the release candidate.

如果这个问题已经发生，卸载这个候选版本，安装Windows XP SP2，然后再重新发布的候选版本。

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The iTunes vulnerabilities were spotted by Kaspersky on the Mac OSX v10.5 and later, Windows 7, Vista, and Windows XP SP2.

FORBES: Apple's iTunes, QuickTime, High On Cyber Security Vulnerability List, Kasperky Lab Says

According to the Microsoft Web site, the operating systems affected include Windows XP, Windows XP Service Pack 1, Windows 2000 SP2, Windows 2000 SP3 and Windows 2000 SP4.

CNN: Sasser worm rips through Internet

The SP2 update for those using the Home Edition of XP was made available last week as a "trial", said the spokesperson, but Microsoft did not make it available automatically to all until Wednesday.

BBC: Microsoft said it was crucial PC users update