Supported Windows operating systems:
The supported Windows operating system editions for 64-bit Office 2010 client include the following:
- 64-bit editions of Windows Vista with SP1
- 64-bit editions of Windows Server 2008 with Service Pack 1
- Windows 7
- Windows Server 2008 R2
The following statements apply:
- The 64-bit Office client can be installed only on 64-bit editions of Windows Vista with SP1, 64-bit editions of Windows Server 2008 with Service Pack 1, Windows 7, and Windows Server 2008 R2.
- The 32-bit Office client is supported as a WOW64 installation. This is the default installation on 64-bit Windows operating systems. The 32-bit Windows-based applications run on 64-bit Windows, which allows for compatibility with 32-bit Office applications and add-ins.
- Office 2010 server products (Microsoft SharePoint Server 2010, Microsoft SharePoint Foundation 2010, and Microsoft Project Server 2010) support the 64-bit edition of Windows Server 2008 with Service Pack 2, and Windows Server 2008 R2.
- For click-to-run scenarios, the supported version is Office 2010 32-bit (WOW64) on computers that run the supported 64-bit editions of Windows operating systems.