Article ID: 2249804 - View products that this article applies to.

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When you try to run the Office 365 Desktop Setup Tool to install the latest software updates that are required for Microsoft Office 365 connectivity, you receive the following error message:
Your computer requires an update to the Windows Installer Service


To resolve this issue, install the latest version of the Windows Installer service. To install the latest version of the Windows Installer, connect to the Windows Update website ( Or, use the following URL:


This issue occurs when you don't have the latest version of the Microsoft Windows Installer (MSI) service installed on your computer. The Windows Installer service is a required component for the Office 365 Desktop Setup Tool. The Windows Installer service helps install the required updates. You must be running the latest version of the service to complete these installations.

Still need help? Go to the Office 365 Community website.


Article ID: 2249804 - Last Review: October 29, 2013 - Revision: 9.0
Applies to
  • Microsoft Office 365 for enterprises (pre-upgrade)
  • Microsoft Office 365 for small businesses  (pre-upgrade)
  • Microsoft Office 365 for education  (pre-upgrade)
  • Microsoft Office 365
o365 o365e o365p o365a o365022013 after upgrade o365062011 pre-upgrade o365m KB2249804

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