Having worked with Synaptics, Microsoft has identified a compatibility issue and also provided details of a workaround.
Users trying to update these drivers found that the update process would fail or produce errors during or after setup. Installing updates in Windows 10 can be something of a gamble - will the latest patches make things better or worse? For people with Conexant ISST audio drivers, there have been numerous issues in Windows Update (or Windows 10 version 2004).