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Windows 2000 Service Pack 1

Windows 2000 Service Pack 1 (SP1) provides the latest updates to the Windows 2000 family of operating systems. These updates are a collection of fixes in the following areas: setup, application compatibility, operating system reliability, and security. SP1 is not considered a required upgrade; to determine whether to install SP1, Microsoft recommends that customers review all available Windows 2000 SP1 documentation. (This site is in English.)

Installing Windows 2000 SP1 does not change your current encryption level. Setup determines the encryption level of your operating system, either standard (56-bit) or high (128-bit) encryption, and automatically installs the Service Pack with the same encryption level.

System Requirements
Before you download Windows 2000 SP1, make sure your computer meets or exceeds the following system requirements:

- Operating System: Windows 2000 Professional, Windows 2000 Server, or Windows 2000 Advanced Server
- Disk Space: The recommended space requirements vary for installations on the different Windows 2000 platforms. For details see Space Requirements for the Service Pack listed in the readme file. (This file is in English.)

For more installation recommendations and additional information about the new Service Pack, visit the Windows 2000 SP1 Web site. (This site is in English.)

How to Use
Restart your computer to complete the installation.

How to uninstall
If you install any programs or services that require Windows 2000 SP1 or have installed updates that are contained in Windows 2000 SP1, uninstalling Windows 2000 SP1 could adversely affect those programs.

1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click Add/Remove Programs.
3. Click Windows 2000 Service Pack 1.
4. Click Change/Remove to uninstall Windows 2000 SP1.

Note If you install Internet Explorer 5.01 Service Pack 1 (SP1) or Internet Explorer 5.01 Service Pack 2 (SP2), after you install Windows 2000 SP1, Windows 2000 SP1 will not appear in the Add/Remove Programs utility. For more information about this issue, read Microsoft Knowledge Base (KB) Article Q291558. (This site is in English).

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