32 or 64 bit Outlook?

As from Outlook 2010, Outlook can be installed in 32 or 64 bit version. Here is how you can check which version you have installed.

  • For Outlook 2010 click the File tab, then Help
  • To the right of the screen you will find 'About Microsoft Outlook'
  • Underneath here you will find whether you are running 32 or 64 bit Outlook (when nothing is mentioned, your version is 32 bit)
     
  • For Outlook 2013/2016 click the File tab, then Office Account, then click About Outlook
  • In the About screen 32 or 64 bit is mentioned

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