An E-Notebook User was getting the below error while opening an Word section in E-Notebook.Error Displaying MS Word Document

An E-Notebook User was getting the below error while opening an Word section in E-Notebook.

Error Displaying MS Word Document
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Sorry, Unable to cast COM object of type 'Microsoft.Office.Interop.Word.DocumentClass' to interface type 'Microsoft.Office.Interop.Word._Document'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{0002096B-0000-0000-C000-000000000046}' failed due to the following error: Library not registered. (Exception from HRESULT: 0x002801D (TYPE_E_LIBNOTREGISTERED)).
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OK
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Applicable Version:
E-Notebook 13.x and Office 365

Please use the below link to download the tool(Select the right Office version and OS version from the options) to uninstall MS Office application from Users machine. This tool was designed by Microsoft and fully uninstalls MS Office from the computer.
https://support.office.com/en-us/article/uninstall-office-from-a-pc-9dd49b83-264a-477a-8fcc-2fdf5dbf61d8

Then reinstall the MS Office.
Now, delete E-Notebook client and 2.0 folder and then install E-Notebook client using clickonce link.