Windows X.XX



Windows X.XX is a Windows family for consumers and businesses.

Version writing scheme
Legend:
 * M = Major Release Number
 * S = Small Release Number
 * = Used when the value isn't 0

Before Windows 5
Microsoft Windows M.S (M.SS)

Windows 5.x
Microsoft Windows M (M.S/M.SS)

After Windows 6
Windows M (M.S/M.SS)

Versions

 * Windows 1.0 (1985)
 * Windows 1.0 Romanian Edition (1989)
 * Windows 2.0 (1987)
 * Windows 2.1 (1988)
 * Windows 3.0 (1990)
 * Windows 3.1 (1992)
 * Windows 3.2 (1993)
 * Windows 4.0 (1995)
 * Windows 4.1 (1996)
 * Windows 5 (1999)
 * Windows 5.1 (2002)
 * Windows 6 (2006)
 * Windows 7 (2009)
 * Windows 7.1 (2011)
 * Windows 8 (2012)
 * Windows 8.1 (2013)
 * Windows 9 (2014)
 * Windows 10 (2015)
 * Windows 11 (2021)
 * Windows 11 PC (2022)
 * Windows 12 (2027)

End of support for Windows 5.1 and below
Microsoft originally, wanted to set the date to end all of the remaining operating systems from Windows 5.1 and down to completely, lose it's support on January 2, 2005. But, due to a lack of upgrades and demands Microsoft has pushed the date for all of the operating systems from Windows 5.1 and below to end on it's support cycle on March 19, 2007.