"The Installation of This Package Failed" When you install Office Pro Plus 2010 from Microsoft 365 Subscription Portal

Symptoms

You download Microsoft Office Professional Plus from the Microsoft 365 Portal and when you double-click the MicrosoftOffice.EXE file to install it, you receive the following error message: "The Installation of this package failed."

Cause

The downloaded file is incomplete or corrupt

Resolution

Once the MicrosoftOffice.EXE file is downloaded, check the file size by right-clicking on the file and choosing Properties. The file size should be:

For the 32-bit download: 772 MB For the 64-bit download: 864 MB

If the file is not the correct size, try downloading the file again.