There are two " bit versions " of Office applications on the Windows operating system. For each Office version (for example, Office 2013 or 2016), there are 32-bit or 64-bit versions.

What does the 32-bit or 64-bit version mean?

Whether you are installing a 32-bit or 64-bit version of Office, you need to make sure that the bit versions of all Office applications are consistent. You cannot mix 64-bit and 32-bit versions of Office on the same computer.

If you try to install a 64-bit version of MS Access 2016 on a computer that already has another Office application installed, you may receive an error message as follows:

Which bit version should I use?

The bit version you should use depends in part on the bit version of your Windows operating system (OS), as well as your computer processor . A 64-bit software program can only run on a 64-bit operating system, while a 32-bit program can run on a 32-bit or 64-bit operating system.

Similarly, a 64-bit operating system can only work with a 64-bit processor , while a 32-bit operating system can work with a 32-bit or 64-bit processor. Most modern computers are equipped with 64-bit processors that have more memory (RAM) and stronger security features than older 32-bit processors.

How to view the version of the Office application you are using

Step 1: Open any Office application, such as Word or Excel, and then click the File tab from the menu bar at the top of the window.

Step 2: Select an account or help and view the content under Product Information . Here you will see the version of Office you are using.

Step 3: To check if it is a 32-bit or 64-bit version, click on the About Word (or About Excel , etc.) section, which will show more information, including the bit version.

How to switch the bit version of Office

Step 1: To switch from using 32-bit to 64-bit Office applications, you first need to uninstall all installed 32-bit Office applications versions on your computer. For help with how to uninstall Office programs, see this guide.

Note : This is also required to switch from using the 64-bit version to the 32-bit version.

Step 2: After completely uninstalling the old version of Office, you can perform a new installation of the 64-bit version.

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