|Windows Arch.||Office State||Result|
|32-bit Windows||No previous office installed||32-bit Office 2010 is installed.|
|32-bit Windows||Yes, Previous version installed||32-bit Office 2010 is installed as an upgrade by default.|
|32-bit Windows||Yes, Office 2010 programs are installed||32-bit Office 2010 is installed.|
|64-bit Windows||No previous office installed||32-bit Office 2010 is installed.|
|64-bit Windows||Yes, Previous version installed||32-bit Office 2010 is installed as an upgrade by default.|
|64-bit Windows||Yes, Office 2010 programs are installed||Setup uses the same architecture as the previously installed Office 2010 programs.|
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.
- Insert the Office 2010 installation DVD;
- Click Start, Computer, right click in the DVD-drive where the Office 2010 installation disk was inserted and select “Open”;
- Open the x64 folder in the installation DVD root and then run the Setup.exe.
- Follow the installation instructions.
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