Build list legend
|Version of Microsoft Windows|
|OS family||Windows NT|
|Latest build||6.1.7601.17514.win7sp1_rtm.101119-1850 (Service Pack 1)|
2023-01-10 (with Extended Security Updates)
Windows 7 is an operating system developed by Microsoft, released to manufacturing on July 22, 2009 and general availability on October 22, 2009. It is the eighth operating system in the Windows NT operating system line. It is intended to fix many of the issues users perceived with Windows Vista. Windows 7 has NT kernel version 6.1, making it a minor update to Windows Vista. Windows 7 improved performance on older hardware, while also improving many areas of the Aero user interface. It is one of Microsoft's most popular operating systems, still running on 15.58% of desktop and laptop computers as of June 2021.
It replaces Windows Vista and was replaced by Windows 8. Mainstream support ended on 13 January 2015, while free extended support ended on 14 January 2020. For Professional and Enterprise users, paid extended support will end on 10 January 2023.
This is the last version of Windows that supports processors without PAE, SSE2 and NX (Update KB4088875 removes support for processors without SSE2); and the last version of Windows that received a Service Pack from Microsoft.
Common belief is that the previous code names of Windows 7 were Blackcomb and/or Vienna, however, they refer to an earlier effort likewise intended to succeed Windows Vista, which was canceled in early 2007 and replaced with the Windows 7 project.
Windows 7 was shipped in the following SKUs:
All of the above editions are offered in N and KN variants without Windows Media Player in order to meet European and Korean legislation. An E variant was also planned, which would also remove Internet Explorer, but in the end the variant was not released and the Browser Choice ballot screen was introduced as a replacement to satisfy the European Union's demands. Some leaked builds leading up to the RTM are available in this variant.
Windows 7 is fully compatible with Intel Skylake and earlier. Later processors do not work as Windows Update is disabled and Intel Graphics do not work, though users have come up with hacks to get both working. Windows 7 also suffered from the same services bug that plagues Windows Vista on Haswell and later processors, but this was patched with an update that was not backported, though users are trying to figure out how to backport it.