Microsoft 始终坚持不懈地改进其软件产品。作为这种努力的一部分，我们开发已知问题的更新和修补程序，并向客户发布。我们会经常性地将很多修补程序放入一个软件包内向您提供，以便您能安装在自己的计算机上。这些软件包称为 Service Pack（服务软件包 ）。 Windows XP Service Pack 1 (SP1) 提供 Windows XP 系列操作系统的安全性与可靠性的最新更新。Windows XP SP1 是设计用于确保 Windows XP 平台与新发行的软件和硬件之间的兼容性的；其中还含有更新，可以解决客户或 Microsoft 的内部测试组所发现的问题。要确定是否安装 Windows XP SP1，我们建议您查看 Windows XP 文档及以下信息。
The Network installation includes all of the Windows XP Service Pack 1a (SP1a) files needed to upgrade Windows XP Home Edition or Windows XP Professional. This download is recommended for IT professionals who want to deploy SP1a to multiple computers over a network. ISDN or faster connection is highly recommended.
Typical download times for the Network installation: 32-bit Platforms: 134 MB | 5.5 hours @ 56K | 11 minutes @ T1
Recommended for multiple-computer installation. After Windows XP SP1a has been downloaded to your computer, no Internet connection is required during the installation with this method. Anti-virus software programs might interfere with the installation. Microsoft recommends that you disable anti-virus software while installing Windows XP SP1a. Can be deployed on your corporate network. Review the Windows XP SP1a Service Pack Installation and Deployment Guide for more information. View the Chinese (Simplified) ReadMe file for documentation about Windows XP SP1a, including installation instructions and pointers to related information. See also the Chinese (Simplified) Hotfix Deployment Guide for information about deploying Windows XP hotfixes across corporate environments. Notes If you use Fast User Switching, make sure all users are logged out and that you are only logged on to the computer as administrator. Exchange Messenger users: Be sure to read the release notes on the Microsoft Windows XP Service Pack 1a Web site before you install the service pack.
