Microsoft Windows Product Line

Original line

• Windows 1.0
• Windows 2.0
• Windows 2.1 (Windows/286 and Windows/386)
• Windows 3.0
• Windows 3.1 (with a respective Windows for Workgroups release)
• Windows 3.11 (also with a respective Windows for Workgroups release)
• Windows 3.2 (a minor update to 3.1 for Simplified Chinese support)

Windows 9x

• Windows 95 (version 4.0)
• Windows 98 and Windows 98 SE (version 4.1)
• Windows Me (version 4.9)

Windows NT

• Windows NT 3.1
• Windows NT 3.5
• Windows NT 3.5123
• Windows NT 4.0
• Windows 2000 (NT version 5.0)
• Windows XP and Windows Fundamentals for Legacy PCs (NT version 5.1)
• Windows Server 2003 and Windows XP Professional x64 Edition (NT version 5.2)
• Windows Vista and Windows Server 2008 (NT version 6.0)
• Windows 7 and Windows Server 2008 R2 (NT version 6.1)
• Windows 8 and Windows Server 2012 (NT version 6.2)