I just ran the current update for ArcGIS Pro and got 3 error messages, all 1904 codes about 3 dll that failed to register: DIDatasource.dll (HRESULT -1247220473), DIToolbox.dll (HRESULT -2147220473), and DIToolboxUI.dll (HRESULT -2147220473). Full error text is "Error 1904. Module D: Error 1904. Module D:\ArcGIS Pro\DIDatasource.dll failed to register. HRESULT -2147220473. Contact your support personnel." I have a personal account and don't have "support personnel". Suggestions or assistance on these errors and how to resolve them? Thanks!
My guess is that the "DI..." file names in the error are related to Data Interop extension?
Release notes for ArcGIS Pro 2.4—ArcGIS Pro | Documentation
Do you have that installed and/or licensed?