拒绝访问在尝试安装 Windows XP SP3 时，您可能会收到下列错误消息之一：
消息 1 Service Pack 3 setup error.Access is denied.
消息 2 Service Pack 3 setup error.Service Pack installation did not complete
有关更多信息，请单击下面的文章编号，以查看 Microsoft 知识库中相应的文章：
949377 (
http://support.microsoft.com/kb/949377/) 尝试安装 Windows XP Service Pack 3 时收到错误消息：“Access is denied”（访问被拒绝）或“Service Pack installation did not complete”（Service Pack 安装未完成）
权限不足在尝试安装 Windows XP SP3 时，您可能会收到下面的错误消息： You do not have permission to update Windows XP.Please contact a system administrator.
有关更多信息，请单击下面的文章编号，以查看 Microsoft 知识库中相应的文章：
951244 (
http://support.microsoft.com/kb/951244/) 尝试安装修补程序或更新时出现错误消息：“You do not have permission to update Windows XP”（您没有更新 Windows XP 的权限）
与加密服务相关的错误您可能会遇到下列一个或多个症状：
| • | 尝试安装程序或更新时，可能会收到下面的错误消息：
Digital Signature Not Found
The Microsoft digital signature affirms that software has been tested with Windows and that the software has not been altered since it was tested.
The software you are about to install does not contain a Microsoft digital signature.Therefore, there is no guarantee that this software works correctly with Windows.
Name of software package
If you want to search for Microsoft digitally signed software, visit the Windows Update Web site at http://windowsupdate.microsoft.com to see if one is available.
Do you want to continue the installation?
如果单击“更多信息”，则会收到下面的错误消息：
Microsoft Windows
The signature on the software package you want to install is invalid.The software package is not signed properly.
在第一个错误消息对话框中单击“确定”后，可能会收到一条指出安装成功的消息，或收到下面的错误消息： Name of Update Package
The cryptographic operation failed due to a local security option setting.
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| • | 在尝试安装更新或 Service Pack 时，您可能会收到与以下任一内容类似的错误消息： | • | Name of Update Package
Setup could not verify the integrity of the file Update.inf. Make sure the Cryptographic service is running on this computer.
| | • | Failed to install catalog files.
| | • | The software you are installing has not passed Windows Logo testing to verify its compatibility with Windows XP.(Tell me why this testing is important.)
This software will not be installed.Contact your system administrator.
| | • | 您正在安装的软件没有通过 Windows 徽标测试，无法验证它同此 Windows 版本的兼容性。(告诉我为什么这个测试很重要。)
| | • | Service Pack 1 Setup could not verify the integrity of the file.Make sure the Cryptographic service is running on this computer
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| • | 尝试从 Windows Update 网站或 Microsoft Update 网站安装程序包时，您可能会收到与以下内容类似的消息： The software has not passed Windows logo testing and will not be installed.
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有关更多信息，请单击下面的文章编号，以查看 Microsoft 知识库中相应的文章：
822798 (
http://support.microsoft.com/kb/822798/) 无法安装某些更新或程序
内部错误在尝试安装 Windows XP SP3 时，您可能会收到下面的错误消息：
Service Pack 3 installation did not complete
单击错误消息中的“确定”后，将收到下面的错误消息：
发生内部错误
有关更多信息，请单击下面的文章编号，以查看 Microsoft 知识库中相应的文章：
949384 (
http://support.microsoft.com/kb/949384/) 尝试安装 Windows XP Service Pack 3 时收到错误消息：“An internal error occurred”（发生内部错误）
先决条件失败在尝试安装 Windows XP SP3 时，您可能会收到下列错误消息之一：
消息 1 此 Service Pack 要求计算机使用交流电源才能开始安装程序。
消息 2 Service Pack 3 Setup has been canceled because Microsoft Shared Computer Toolkit for Windows XP is not compatible with this version of Windows.Before you can continue, you must:1) Uninstall Microsoft Shared Computer Toolkit 2) (Optional) Install Windows SteadyState, the newer version of Microsoft Shared Computer Toolkit.For more detailed information, go to the Shared Access page on the Microsoft Web site.
消息 3 Service Pack 3 Setup has been canceled because Windows XP SP3 cannot be installed over RDP 6.0 MUI PACK (Update for Windows XP (KB925877)).Before you can continue, you must Uninstall KB925877.
消息 4 Microsoft Windows XP Professional Service Pack 3 cannot be applied to Windows Fundamentals for Legacy PCs (WinFLP).A unique SP3 update package for WinFLP will be made available at download.microsoft.com.
消息 5 Microsoft Windows XP Professional Service Pack 3 cannot be applied to Windows Embedded for Point of Service (WEPOS).A unique SP3 update package for WEPOS will be made available at download.microsoft.com.
消息 6 Setup cannot continue because one or more prerequisites required to install Service Pack 3 failed.For More details check the Log File Drive_Letter :\windows\svcpack.log.
有关更多信息，请单击下面的文章编号，以查看 Microsoft 知识库中相应的文章：
949388 (
http://support.microsoft.com/kb/949388/) Windows XP Service Pack 3 安装失败并显示错误消息，同时在 Service Pack 安装日志中记录以下错误：“8007F0F4 - STATUS_PREREQUISITE_FAILED”
正在进行另一更新。在尝试安装 Windows XP SP3 时，您可能会收到下面的错误消息： 安装程序检测到正在进行另一个更新。请完成安装或删除，然后再试一次。
有关更多信息，请单击下面的文章编号，以查看 Microsoft 知识库中相应的文章：
949381 (
http://support.microsoft.com/kb/949381/) 尝试安装 Windows XP Service Pack 3 时收到错误消息：“Setup has detected that another update is in progress.Please complete that installation or removal and try again”
回到顶端排查更新日志或 Service Pack 日志文件中显示的错误代码在遇到 Windows XP SP3 安装故障时，通常会在 %windir%\WindowsUpdate.log 文件或 %windir%\svcpack.log 文件中记录一个错误代码。通常情况下，这些文件位于 C:\Windows 目录中。下表列出可能显示在这些日志文件中的一些最常见错误代码。Microsoft 知识库文章为每个错误提供了可能的解决方案。
回到顶端参考有关更多信息，请单击下面的文章编号，以查看 Microsoft 知识库中相应的文章：
936929 (
http://support.microsoft.com/kb/936929/) Windows XP Service Pack 3 候选发布版本的发行说明
946480 (
http://support.microsoft.com/kb/946480/) Windows XP Service Pack 3 中包含的修补程序的列表
回到顶端这篇文章中的信息适用于:
| • | Microsoft Windows XP Service Pack 3 |
回到顶端| 关键字： | kbexpertiseinter kbinfo KB950717 |
