Operating System Requirements for all SQL Server Versions and Editions

SQL Server is the world’s most powerful data platform and it is constantly evolving. From release to release significant new features are added. Besides the features and functionality, one of the typical question DBAs have is which are the Operating System requirements for each version and edition of SQL Server. In this post you can find this information for all versions and editions gathered from different MSDN Library articles. In the end of each table there is a reference to the source document on MSDN in case you need to find more information (i.e. 32-bit vs. 64 bit, etc.).

SQL Server 2016 – Operating System Requirements
SQL Server 2016 Enterprise	Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation
SQL Server 2016 Standard	Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows 10 Home Windows 10 Professional Windows 10 Enterprise Windows 8.1 Windows 8.1 Pro Windows 8.1 Enterprise Windows 8 Windows 8 Pro Windows 8 Enterprise
SQL Server 2016 Web	Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation
SQL Server 2016 Developer	Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows 10 Home Windows 10 Professional Windows 10 Enterprise Windows 8.1 Windows 8.1 Pro Windows 8.1 Enterprise Windows 8 Windows 8 Pro Windows 8 Enterprise
SQL Server 2016 Express	Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows 10 Home Windows 10 Professional Windows 10 Enterprise Windows 8.1 Windows 8.1 Pro Windows 8.1 Enterprise Windows 8 Windows 8 Pro Windows 8 Enterprise
For more info please visit: https://msdn.microsoft.com/en-us/library/ms143506.aspx

SQL Server 2014 – Operating System Requirements
SQL Server 2014 Enteprise	Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essential Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2008 R2 SP1 Datacenter Windows Server 2008 R2 SP1 Enterprise Windows Server 2008 R2 SP1 Standard Windows Server 2008 R2 SP1 Web Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Web
SQL Server 2014 Business Intelligence	Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2008 R2 SP1 Datacenter Windows Server 2008 R2 SP1 Enterprise Windows Server 2008 R2 SP1 Standard Windows Server 2008 R2 SP1 Web Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Web
SQL Server 2014 Standard	Windows 10 Home Windows 10 Professional Windows 10 Enterprise Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2008 R2 SP1 Datacenter Windows Server 2008 R2 SP1 Enterprise Windows Server 2008 R2 SP1 Standard Windows Server 2008 R2 SP1 Foundation Windows Server 2008 R2 SP1 Web Windows 8.1 Windows 8.1 Pro Windows 8.1 Enterprise Windows 8 Windows 8 Pro Windows 8 Enterprise Windows 7 SP1 Ultimate Windows 7 SP1 Enterprise Windows 7 SP1 Professional Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Foundation Windows Server 2008 SP2 Web
SQL Server 2014 Web	Windows 10 Home Windows 10 Professional Windows 10 Enterprise Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2008 R2 SP1 Datacenter Windows Server 2008 R2 SP1 Enterprise Windows Server 2008 R2 SP1 Standard Windows Server 2008 R2 SP1 Web Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Web
SQL Server 2014 Developer	Windows 10 Home Windows 10 Professional Windows 10 Enterprise Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2008 R2 SP1 Datacenter Windows Server 2008 R2 SP1 Enterprise Windows Server 2008 R2 SP1 Standard Windows Server 2008 R2 SP1 Web Windows 8.1 Windows 8.1 Pro Windows 8.1 Enterprise Windows 8 Windows 8 Pro Windows 8 Enterprise Windows 7 SP1 Ultimate Windows 7 SP1 Enterprise Windows 7 SP1 Professional Windows 7 SP1 Home Premium Windows 7 SP1 Home Basic Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Web
SQL Server 2014 Express	Windows 10 Home Windows 10 Professional Windows 10 Enterprise Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2008 R2 SP1 Datacenter Windows Server 2008 R2 SP1 Enterprise Windows Server 2008 R2 SP1 Standard Windows Server 2008 R2 SP1 Foundation Windows Server 2008 R2 SP1 Web Windows 8.1 Windows 8.1 Pro Windows 8.1 Enterprise Windows 8 Windows 8 Pro Windows 8 Enterprise Windows 7 SP1 Ultimate Windows 7 SP1 Enterprise Windows 7 SP1 Professional Windows 7 SP1 Home Premium Windows 7 SP1 Home Basic Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Foundation Windows Server 2008 SP2 Web
For more info please visit: https://msdn.microsoft.com/en-us/library/ms143506(v=sql.120).aspx

SQL Server 2008 R2 – Operating System Requirements
SQL Server 2008 R2 Datacenter	Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Server 2003 SP2 Standard Windows Server 2003 R2 SP2 Datacenter Windows Server 2003 R2 SP2 Enterprise Windows Server 2003 R2 SP2 Standard Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Datacenter without Hyper-V Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Enterprise without Hyper-V Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Standard without Hyper-V Windows Server 2008 SP2 Web Windows Server 2008 for Windows Essential Server Solutions Windows 2008 R2 Datacenter Windows 2008 R2 Enterprise Windows 2008 R2 Standard Windows 2008 R2 Web Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation
SQL Server 2008 R2 Enterprise	Windows Server 2003 SP2 Datacenter Windows Server 2003  SP2 Enterprise Windows Server 2003 SP2 Standard Windows Server 2003 R2 SP2 Datacenter Windows Server 2003 R2 SP2 Enterprise Windows Server 2003 R2 SP2 Standard Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Datacenter without Hyper-V Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Enterprise without Hyper-V Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Standard without Hyper-V Windows Server 2008 SP2 Web Windows 2008 R2 Datacenter Windows 2008 R2 Enterprise Windows 2008 R2 Standard Windows 2008 R2 Web Windows Server 2008 R2 for Windows Essential Server Solutions Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation
SQL Server 2008 R2 Standard	Windows XP Professional SP2 Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Server 2003 SP2 Standard Windows Server 2003 R2 SP2 Datacenter Windows Server 2003 R2 SP2 Enterprise Windows Server 2003 R2 SP2 Standard Windows Vista SP2 Ultimate Windows Vista SP2 Enterprise Windows Vista SP2 Business Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Datacenter without Hyper-V Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Enterprise without Hyper-V Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Standard without Hyper-V Windows Server 2008 SP2 Web Windows Server 2008 SP2 for Windows Essential Server Solutions Windows Server 2008 SP2 Foundation Server Windows 7 Ultimate Windows 7 Enterprise Windows 7 Professional Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Windows Server 2008 R2 for Windows Essential Server Solutions Windows Server 2008 R2 Foundation Server Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8 Windows 8 Professional Windows 8.1 Windows 8.1 Professional
SQL Server 2008 R2 Developer	Windows XP SP2 Professional Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Server 2003 SP2 Standard Windows Server 2003 R2 SP2 Datacenter Windows Server 2003 R2 SP2 Enterprise Windows Server 2003 R2 SP2 Standard Windows Vista Ultimate Windows Vista Home Premium Windows Vista Home Basic Windows Vista Enterprise Windows Vista Business Windows Server 2008 SP2 Datacenter Windows Server 2008 Datacenter without Hyper-V Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Enterprise without Hyper-V Windows Server 2008 SP2 Standard Windows Server 2008 Standard without Hyper-V Windows Server 2008 SP2 Web Windows 7 Ultimate Windows 7 Home Premium Windows 7 Home Basic Windows 7 Enterprise Windows 7 Professional Windows Server 2008 R2 DataCenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Windows Server 2008 R2 for Windows Essential Server Solutions Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8 Windows 8 Professional Windows 8.1 Windows 8.1 Professional
SQL Server 2008 R2 Workgroup	Windows XP SP2 Professional Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Server 2003 SP2 Standard Windows Server 2003 R2 SP2 Datacenter Windows Server 2003 R2 SP2 Enterprise Windows Server 2003 R2 SP2 Standard Windows Vista SP2 Ultimate Windows Vista SP2 Enterprise Windows Vista SP2 Business Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Datacenter without Hyper-V Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Enterprise without Hyper-V Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Standard without Hyper-V Windows Server 2008 SP2 Web Windows Server 2008 R2 for Windows Essential Server Solutions Windows Server 2008 SP2 Foundation Server Windows 7 Ultimate Windows 7 Enterprise Windows 7 Professional Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Windows Server 2008 R2 Foundation Server Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8 Windows 8 Professional Windows 8.1 Windows 8.1 Professional
SQL Server 2008 R2 Web	Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Server 2003 SP2 Standard Windows Server 2003 R2 SP2 Datacenter Windows Server 2003 R2 SP2 Enterprise Windows Server 2003 R2 SP2 Standard Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Datacenter without Hyper-V Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Enterprise without Hyper-V Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Standard without Hyper-V Windows Server 2008 SP2 Web Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Windows Server 2008 R2 Datacenter Windows Server 2008 R2 for Windows Essential Server Solutions Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation
SQL Server 2008 R2 Express	Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Server 2003 SP2 Standard Windows Server 2003 R2 SP2 Datacenter Windows Server 2003 R2 SP2 Enterprise Windows Server 2003 R2 SP2 Standard Windows Vista SP2 Ultimate Windows Vista SP2 Home Premium Windows Vista SP2 Home Basic Windows Vista SP2 Enterprise Windows Vista SP2 Business Windows Server 2008 SP2 Datacenter Windows Server 2008 SP2 Datacenter without Hyper-V Windows Server 2008 SP2 Enterprise Windows Server 2008 SP2 Enterprise without Hyper-V Windows Server 2008 SP2 Standard Windows Server 2008 SP2 Standard without Hyper-V Windows Server 2008 SP2 Web Windows Server 2008 SP2 Foundation Server Windows 7 Ultimate Windows 7 Home Premium Windows 7 Home Basic Windows 7 Enterprise Windows 7 Professional Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Windows Server 2008 R2 for Windows Essential Server Solutions Windows Server 2008 R2 Foundation Server Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8 Windows 8 Professional Windows 8.1 Windows 8.1 Professional
For more info please visit: https://msdn.microsoft.com/en-us/library/ms143506(v=sql.105).aspx

SQL Server 2008 – Operating System Requirements
SQL Server 2008 Enterprise	Windows Server 2003 SP2 Standard Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Server 2008 Standard Windows Server 2008 Standard without Hyper-V Windows Server 2008 Datacenter Windows Server 2008 Datacenter without Hyper-V Windows Server 2008 Enterprise Windows Server 2008 Enterprise without Hyper-V Windows Server 2008 R2 Web Windows Server 2008 R2 Standard Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation
SQL Server 2008 Standard	Windows XP Professional Windows Server 2003 SP2 Standard Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Vista Ultimate Windows Vista Enterprise Windows Vista Business Windows Server 2008 Web Windows Server 2008 Standard Windows Server 2008 Standard without Hyper-V Windows Server 2008 Datacenter Windows Server 2008 Datacenter without Hyper-V Windows Server 2008 Enterprise Windows Server 2008 Enterprise without Hyper-V Windows Small Business Server 2008 Windows Server 2008 for Windows Essential Server Solutions Windows Server 2008 without Hyper-V for Windows Essential Server Solutions Windows 7 Ultimate Windows 7 Enterprise Windows 7 Professional Windows 2008 R2 Web Windows 2008 R2 Foundation Server Windows 2008 R2 Standard Windows 2008 R2 Enterprise Windows 2008 R2 Datacenter Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows 8 Windows 8 Professional Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8.1 Windows 8.1 Professional
SQL Server 2008 Developer	Windows XP Professional Windows Server 2003 SP2 Standard Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Vista Ultimate Windows Vista Home Premium Windows Vista Home Basic Windows Vista Enterprise Windows Vista Business Windows Server 2008 Standard Windows Server 2008 Standard without Hyper-V Windows Server 2008 Datacenter Windows Server 2008 Datacenter without Hyper-V Windows Server 2008 Enterprise Windows Server 2008 Enterprise without Hyper-V Windows Server 2008 Web Windows 7 Web Windows 7 Home Basic Windows 7 Home Premium Windows 7 Enterprise Windows 7 Ultimate Windows 7 Professional Windows 2008 R2 Web Windows 2008 R2 Standard Windows 2008 R2 Enterprise Windows 2008 R2 Datacenter Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows 8 Windows 8 Professional Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8.1 Windows 8.1 Professional
SQL Server 2008 Workgroup	Windows XP Professional Windows Server 2003 SP2 Standard Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Vista Ultimate Windows Vista Home Premium Windows Vista Home Basic Windows Vista Enterprise Windows Vista Business Windows Server 2008 Web Windows Server 2008 Standard Windows Server 2008 Standard without Hyper-V Windows Server 2008 Datacenter Windows Server 2008 Datacenter without Hyper-V Windows Server 2008 Enterprise Windows Server 2008 Enterprise without Hyper-V Windows 7 Ultimate Windows 7 Enterprise Windows 7 Professional Windows Server 2008 R2 Web Windows Server 2008 R2 Foundation Server Windows Server 2008 R2 Standard Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows 8 Windows 8 Professional Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8.1 Windows 8.1 Professional
SQL Server 2008 Web	Windows XP Professional Windows Server 2003 SP2 Standard Windows Server 2003 SP2 Datacenter Windows Server 2003 SP2 Enterprise Windows Vista Ultimate Windows Vista Enterprise Windows Vista Business Windows Server 2008 Web Windows Server 2008 Standard Windows Server 2008 Standard without Hyper-V Windows Server 2008 Datacenter Windows Server 2008 Datacenter without Hyper-V Windows Server 2008 Enterprise Windows Server 2008 Enterprise without Hyper-V Windows Server 2008 R2 Web Windows Server 2008 R2 Standard Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation
SQL Server 2008 Express	Windows Server 2003 Windows Server 2003 SP2 Standard Windows Server 2003 SP2 Datacente Windows Server 2003 SP2 Enterprise Windows Vista Ultimate Windows Vista Home Premium Windows Vista Home Basic Windows Vista Enterprise Windows Vista Business Windows Server 2008 Web1 Windows Server 2008 Standard Windows Server 2008 Standard without Hyper-V Windows Server 2008 Datacenter Windows Server 2008 Datacenter without Hyper-V Windows Server 2008 Enterprise Windows Server 2008 Enterprise without Hyper-V Windows 7 Ultimate Windows 7 Home Basic Windows 7 Home Premium Windows 7 Enterprise Windows 7 Professional Windows Server 2008 R2 Web Windows Server 2008 R2 Foundation Server1 Windows Server 2008 R2 Standard Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter Windows Server 2012 Datacenter Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows 8 Windows 8 Professional Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8.1 Windows 8.1 Professional
Note: SQL Server 2008 support on Windows Server 2003 R2 is the same as support on Windows Server 2003 SP2.
For more info please visit: https://msdn.microsoft.com/en-us/library/ms143506(v=sql.100).aspx

SQL Server 2005 – Operating System Requirements
SQL Server 2005 Enterprise Edition	Windows 2000 Server SP4 Windows 2000 Advanced Server SP4 Windows 2000 Datacenter Edition SP4 Windows Server 2003 Server SP1 Windows Server 2003 Standard Edition SP1 Windows Server 2003 Enterprise Edition SP1 Windows Server 2003 Datacenter Edition SP1 Windows Small Business Server 2003 Standard Edition SP1 Windows Small Business Server 2003 Premium Edition SP1 Windows Server 2008 Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web Edition Windows Server 2008 Standard Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web
SQL Server 2005 Developer Edition	Windows 2000 Professional Edition SP4 Windows 2000 Server SP4 Windows 2000 Advanced Server SP4 Windows 2000 Datacenter Edition SP4 Windows XP Home Edition SP2 Windows XP Professional Edition SP2 Windows XP Media Edition SP2 Windows XP Tablet Edition SP2 Windows Server 2003 Server SP1 Windows Server 2003 Enterprise Edition SP1 Windows Server 2003 Datacenter Edition SP1 Windows Small Business Server 2003 Standard Edition SP1 Windows Small Business Server 2003 Premium Edition SP1 Windows Vista Home Basic Edition Windows Vista Home Premium Edition Windows Vista Ultimate Edition Windows Vista Business Edition Windows Vista Enterprise Edition Windows Server 2003 Standard Edition SP1 Windows Server 2003 Datacenter Edition SP1 Windows Server 2003 Enterprise Edition SP1 Windows XP Professional 2003 Windows Vista Home Basic Edition Windows Vista Home Premium Edition Windows Vista Ultimate Edition Windows Vista Business Edition Windows Vista Enterprise Edition Windows Server 2008 Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web Edition Windows Server 2008 Standard Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web
SQL Server 2005 Standard Edition	Windows 2000 Professional Edition SP4 Windows 2000 Server SP4 Windows 2000 Advanced Server SP4 Windows 2000 Datacenter Edition SP4 Windows XP Professional Edition SP2 Windows XP Media Edition SP2 Windows XP Tablet Edition SP2 Windows Server 2003 Server SP1 Windows Server 2003 Enterprise Edition SP1 Windows Server 2003 Datacenter Edition SP1 Windows Small Business Server 2003 Standard Edition SP1 Windows Small Business Server 2003 Premium Edition SP1 Windows Vista Ultimate Edition Windows Vista Business Edition Windows Vista Enterprise Edition Windows Server 2003 Standard Edition SP1 Windows Server 2003 Datacenter Edition SP1 Windows Server 2003 Enterprise Edition SP1 Windows XP Professional 2003 Windows Vista Ultimate Edition Windows Vista Business Edition Windows Vista Enterprise Edition Windows Server 2008 Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web Edition Windows Server 2008 Standard Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web
SQL Server 2005 Workgroup Edition	Windows 2000 Professional Edition SP4 Windows 2000 Server SP4 Windows 2000 Advanced Server SP4 Windows 2000 Datacenter Edition SP4 Windows XP Professional Edition SP2 Windows XP Media Edition SP2 Windows XP Tablet Edition SP2 Windows Server 2003 Server SP1 Windows Server 2003 Enterprise Edition SP1 Windows Server 2003 Datacenter Edition SP1 Windows Small Business Server 2003 Standard Edition SP1 Windows Small Business Server 2003 Premium Edition SP1 Windows Vista Ultimate Edition Windows Vista Business Edition Windows Vista Enterprise Edition Windows Server 2003 Standard Edition SP1 Windows Server 2003 Datacenter Edition SP1 Windows Server 2003 Enterprise Edition SP1 Windows XP Professional 2003 Windows Vista Ultimate Edition Windows Vista Business Edition Windows Vista Enterprise Edition Windows Server 2008 Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web Edition Windows Server 2008 Standard Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web
SQL Server 2005 Express Edition	Windows 2000 Professional Edition SP4 Windows 2000 Server SP4 Windows 2000 Advanced Server SP4 Windows 2000 Datacenter Edition SP4 Windows XP Embedded SP2 Feature pack 2007 Windows Embedded for Point of Service Windows XP Home Edition SP2 Windows XP Professional Edition SP2 Windows XP Media Edition SP2 Windows XP Tablet Edition SP2 Windows Server 2003 Server SP1 Windows Server 2003 Enterprise Edition SP1 Windows Server 2003 Datacenter Edition SP1 Windows Server 2003 Web Edition SP1 Windows Small Business Server 2003 Standard Edition SP1 Windows Small Business Server 2003 Premium Edition SP1 Windows Vista Home Basic Edition Windows Vista Home Premium Edition Windows Vista Ultimate Edition Windows Vista Business Edition Windows Vista Enterprise Edition Windows Server 2003 Standard Edition SP1 Windows Server 2003 Datacenter Edition SP1 Windows Server 2003 Enterprise Edition SP1 Windows XP Professional 2003 Windows Vista Home Basic Edition Windows Vista Home Premium Edition Windows Vista Ultimate Edition Windows Vista Business Edition Windows Vista Enterprise Edition Windows Server 2008 Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web Edition Windows Server 2008 Standard Windows Server 2008 Enterprise Windows Server 2008 Data Center Windows Server 2008 Web
Note: SQL Server 2005 support on Windows Server 2003 R2 is the same as support on Windows Server 2003 SP1.
For more info please visit: https://technet.microsoft.com/en-us/library/ms143506(v=sql.90).aspx Reference: The SQL Server and .NET Hub (http://www.sqlnethub.com)