Determining Domain Migration Strategies

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Determining Supported Upgrade Paths

When planning your upgrade, you must determine if your current operating system can be upgraded directly to Windows 2000. Table 10.4 contains a list of currently supported upgrade paths. If you find that a direct upgrade of your operating system is not supported, you must first upgrade to an operating system such as Windows 95 or Windows 98 for clients, or Windows NT for clients and servers. Make sure that this intermediate step is reflected in your upgrade plan.

For more information about upgrading member servers, see "Upgrading and Installing Member Servers" in this book.

Table 10.4 Supported Upgrade Paths


Operating System
Upgrade to Windows 2000 Professional Upgrade to Windows 2000 Server
Windows 3.x No No
Windows NT 3.1 No No
Windows NT Workstation 3.51 Yes No
Windows NT Server 3.51 No Yes
Windows 95 and Windows 98 Yes No
Windows NT Workstation 4.0 Yes No
Windows NT Server 4.0  No Yes

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