Fix for "Office Mix 32-bit requires PowerPoint 2013 32-bit, version SP1 or later" error

We have identified an issue that blocks the Office Mix Setup program after users upgrade from the 32-bit version of Office 2013 to the 64-bit version of Office 16 Technical Preview:

Root cause

When Office 2013 is uninstalled, it leaves behind some stale registry keys that Office Mix Setup does not recognize as invalid. As a result, when the Office Mix Setup program is run, it attempts to install Office Mix for a valid 32-bit version of Office 2013 but encounters an error when it tries to evaluate the 32-bit Office program files.


We have fixed this issue internally and will make the fix available in our next release of Office Mix.

In the meantime, here is a workaround designed to ignore any stale registry keys leftover from a 32-bit uninstallation of Office and install Office Mix for a 64-bit version of Office:

  1. Press Windows+R and type "regedit" to open the Registry Editor.
  2. In the Registry Editor, navigate to this folder, which should be empty:
  3. Right-click the folder and select Rename.
  4. Type a new name for the folder (e.g., Uninstalled).

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