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How to find Outlooks bit version

Starting from Microsoft Office 2010, two different bit versions are available for installing depending on your system requirements - 32-bit or 64-bit

Find Outlooks bit version by following these steps:

Step 1. If you are using Outlook 2013/2016/2019/Office 365, open your desktop Outlook application and go to the File option located in the top left corner of the Outlook window.

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Step 2. Click the Office Account option located in the bottom left of the Outlook window.

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Step 3. Click the About Outlook button located in the middle of the window.

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Step 4. Once in the About Outlook window, the bit version number will be listed on the top. It will be either 32-bit or 64-bit.

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Tips about finding Outlooks bit version:

  • In Outlook 2010, you can find out the bit version by clicking File > Help.
  • You can have 32-bit Outlook in a 64-bit Windows system. However,
    it is recommended to use the same bit version as your system to avoid any
    compatibility issues.
  • Outlook versions that are older than 2010 are all 32-bit.

Contact Support about finding Outlooks bit version