The affected driver will be named Conexant ISST Audio or Conexant HDAudio Driver under Sound, video and game controllers in Device Manager and have file name uci64a96.dll through uci64a231.dll and a file version lower than 7.231.3.0. Windows 10 devices with affected Conexant ISST audio driver might receive an error or experience issues while installing the update or after the device has updated. Synaptics and Microsoft have found incompatibility issues with certain versions of drivers for Conexant ISST audio driver and Windows 10, version 2004 (the Windows Update). Errors or issues during or after updating devices with Conexant ISST audio drivers
Note: We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until this issue has been resolved. Next steps: Microsoft and Realtek are working on a resolution and will provide an update in an upcoming release.
To safeguard your update experience, Microsoft has applied a compatibility hold on Windows 10 devices with affected Realtek Bluetooth radio drivers installed from being offered Windows 10, version 2004 or Windows Server, version 2004 until the driver has been updated.