|  | Upgrading to Windows XP Professional Identifying Upgrade Paths
|  | If you are running |  | Upgrade to this OS first |  |
|  | Versions of Microsoft NT workstation earlier than version 4.0 SP 5 |  | Windows NT 4.0 SP 5 |  |
|  | Windows 95 |  | Windows 98 |  |
| The following table shows the operating systems that require an additional step to be upgraded to Windows XP Professional.
| Note: 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.