Article ID: 2383796 - View products that this article applies to.
When you try to install Office 2010 using the installation DVD in a computer running Windows 64-bit only Office 32-bit is installed.
When you are using the installation DVD to install Office 2010 using the default installation interface setup the architecture will be chosen based on the following table:
Collapse this tableExpand this table
Note: 32-bit Office 2010 is selected by default due potential compatibility issues
(http://msdn.microsoft.com/en-us/library/ee691831(v=office.14).aspx)when using the 64-bit version.Note: Office 2010 Click-to-Run can be installed in a 64-bit Windows version but the Office architecture will be only 32-bit. This behavior is by design.
Before install Office 2010 x64-bit you need to check if your computer is running a supported x64-bit Windows version. You can only install Office 2010 x64-bit if you are running an x64-bit Windows version. To check if what are the Windows version and architecture you are running please read the article “Is my PC running the 32-bit or 64-bit version of Windows?
Important: If you have any Microsoft Office 32-bit installed you will need to uninstall before to install Microsoft Office 2010 x64-bit.
Installing Office 2010 x64-bit
Make sure that you are running and supported x64-bit Windows version to install Office 2010 x64-bit. If you are not sure about this, please read the session above.
Note: Office 2010 Click-to-Run can be installed in a 64-bit Windows version but the Office architecture will be only 32-bit. This behavior is by design.
To get more details about how to choose the x32 or x64-bit Office 2010 version, compare features between architectures, compatibility issues and supported operating systems, please read the following article:
Choose the 32-bit or 64-bit version of Microsoft Office
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.
Article ID: 2383796 - Last Review: October 21, 2012 - Revision: 4.0