If you are trying to update to the Windows 10 November 2019 Update (Windows 10, version 1909), the Windows 10 May 2019 Feature Update (Windows 10, version 1903), or the Windows 10 October 2018 Update (Windows 10, version 1809), you may encounter an update compatibility hold and receive the message, "Realtek Bluetooth: Your PC has a driver or service that isn't ready for this version of windows 10. A new version is avialable."
Windows 10, version 1909 and Windows 10, version 1903:
[Asset 4531691]
Windows 10, version 1809:
[Asset 4531692]