You can use the following compatibility matrix for comparing Oracle and Windows platforms.
Oracle Version
|
Supported OS
|
Oracle 9i
|
- Windows Server 2003 (x86)
- Windows Server 2003 R2 (x86)
|
Oracle 10g r1
|
- Windows Server 2003 (x86)
- Windows Server 2003 R2 (x86)
|
Oracle 10g r2
|
- Windows Server 2003 (x64)
- Windows Server 2003 R2 (x64)
|
Oracle 10g r2
|
- Windows Server 2003 (x86)
- Windows Server 2003 R2 (x86)
- Window Server 2008 (x86)
|
Oracle 11g R1
|
- Windows Server 2003 (x64)
- Windows Server 2003 R2 (x64)
- Windows Server 2008 (x64)
|
Oracle 11g R2
|
- Windows Server 2003 (x86)
- Windows Server 2003 R2 (x86)
- Windows Server 2008 (x86)
- Windows Server 2008 R2(x86)
|
Oracle 12c
|
- Windows Server 2008 R2
- Windows Server 2012
- Windows Server 2012 R2
|