Checking for Version of Operating System

Timeline of Windows Releases, Version/Build, Supported or Not

Release date	Product name	Current Version/Build	Notes
November 1985	Windows 1.01	1.01	Unsupported
November 1987	Windows 2.03	2.03	Unsupported
March 1989	Windows 2.11	2.11	Unsupported
May 1990	Windows 3.0	3.0	Unsupported
March 1992	Windows 3.1x	3.1	Unsupported
October 1992	Windows For Workgroups 3.1	3.1	Unsupported
July 1993	Windows NT 3.1	NT 3.1	Unsupported
December 1993	Windows For Workgroups 3.11	3.11	Unsupported
January 1994	Windows 3.2 (released in Simplified Chinese only)	3.2	Unsupported
September 1994	Windows NT 3.5	NT 3.5	Unsupported
May 1995	Windows NT 3.51	NT 3.51	Unsupported
August 1995	Windows 95	4.0.950	Unsupported
July 1996	Windows NT 4.0	NT 4.0.1381	Unsupported
June 1998	Windows 98	4.10.1998	Unsupported
May 1999	Windows 98 SE	4.10.2222	Unsupported
February 2000	Windows 2000	NT 5.0.2195
September 2000	Windows Me	4.90.3000	Unsupported
October 2001	Windows XP	NT 5.1.2600	Current for SP2 and SP3 (RTM and SP1 unsupported)
March 2003	Windows XP 64-bit Edition 2003	NT 5.2.3790	Unsupported
April 2003	Windows Server 2003	NT 5.2.3790	Current for SP1, R2, SP2 (RTM unsupported)
April 2005	Windows XP Professional x64 Edition	NT 5.2.3790	Current
July 2006	Windows Fundamentals Legacy PCs	NT 5.1.2600	Current
November 2006 (volume licensing) January 2007 (retail)	Windows Vista	NT 6.0.6001	Current
July 2007	Windows Home Server	NT 5.2.4500	Current
February 2008	Windows Server 2008	NT 6.0.6001	Current
July 22, 2009	Windows 7	NT 6.1.6936