Sql Server 2019 Cumulative patching [CV] [KB5011644] [15.0.4223.1] is failed with following error.

Error:

     The User Data directory in the registry is not valid. Verify DefaultData key under the instance hive points to a valid directory

 

Reason:-

Check the parameters of “DefaultLog” in the below path in the server registry.

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL15.EFTS\MSSQLServer

 

Update the correct path in the registry and retry the patching.