Office 16 Click-to-Run Extensibility Component 64-bit Registration prevents Installation of the Components

We were trying to install an additional Microsoft Office application, which was a 64-bit version of Microsoft Project. Earlier our client had the Microsoft Office 365 click-to-run 64-bit version installed. When trying to install Microsoft Project, we were getting the error:

We can’t install the 64-bit version of office because we found the following 32-bit programs on your PC:

Office 16 click-to-run extensibility component.

Please uninstall all 32-bit office programs, then retry installing 64-bit office. If you want to install 32-bit office instead, please run the 32-bit setup.

Setup Error

To resolve this issue, we followed these steps:

To uninstall Office 16, Click-to-Run Extensibility Component 64-bit Registration, please try the steps below:

Press Win + R to open the Run window, type “installer” and click Enter to open the folder in File Explorer.

Add the column “Subject”. Right click the column headers, then click More and select Subject.


Sort on the Subject column and scroll down until you locate the name “Office 16 Click-to-Run Extensibility Component 64-bit Registration”.


Right click the MSI file and choose uninstall.

This will allow you to run the installer.


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