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Workaround for Intune errors installing Office 365 using M365 Apps for Windows. An unexpected error occurred during installation.


Installing Office 365 using Intune

Intune gives you the option of using a "Microsoft 365 Apps for Windows" App type for installing MS Office

This App type allows you to choose the Office installation options you want and is really quick and easy to set up

m365 apps for windows

Great! We'll get Office 365 installed in no time.

m365 app type

Except, it just doesn't work very well.

Your deployment might run fine with no issues, or you might see lots of errors like the ones below.

Microsoft 365 Apps Intune errors

Some of the error messages give you some information about the problem, the others are a bit obscure and will lead you down a rabbit hole of many pages of search results with no answers.

Failed 0x00003B01

The resource loader cache doesn't have loaded MUI entry.

Failed 0x00003AFC

The resource loader failed to find MUI file.

An update could not be installed because Office applications are open

An update could not be installed because Office applications are open. (0x0000426E)

An unexpected error occurred during installation

An unexpected error occurred during installation. Check the installation logs for additional information. (0x0000426A)

An unexpected error occurred during installation. Check the installation logs for additional information. (0x00002EE7)

app install errors

What's the solution?

Don't use the App Type - Microsoft 365 apps for deploying Office
Just use a Windows app (Win32) instead and save yourself some time

Install Office 365 using Intune
https://techlabs.cloud/tutorials/intune/windows-apps/install-office-365-using-intune


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