Identifying Upgrade Paths

Identifying Upgrade Paths The following operating systems can be upgraded directly to Windows XP
Professional:
 Windows 98
 Windows Millennium Edition
 Microsoft Windows NT Workstation 4.0 SP 5
 Windows 2000 Professional
The following table shows the operating systems that require an additional step
to be upgraded to Windows XP Professional. If you are running Upgrade to this operating system first Versions of Microsoft NT workstation
earlier than version 4.0 SP 5
Windows NT 4.0 SP 5
Windows 95 Windows 98
Although you can upgrade from Microsoft Windows 3.5.1 and Windows
95 to Windows XP Professional by using interim upgrades, the hardware
available on computers running these older operating systems will probably not
meet the minimum hardware requirements for Windows XP Professional.
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