After installing Service Management 17.3 RU10, the Search Server is not re-registered.
CA Service Desk Manager 17.3
Some of the CA SDM RU patches installs a new JRE (i.e. version 11.0.3).
If you have the SC folder on the C:\ drive, it looks there instead.
There are a number of alternative ways to get around this
1. Copying the JRE to the C:\ drive
2. Editing E:\Program Files\CA\SC\CASearchServer\service.bat and changing line 7 to set the correct Java Home path. Then open an Administrator Command Prompt and run:
CMD /C CALL "E:\Program Files\CA\SC\CASearchServer\service.bat" "E:\Program Files\CA\SC\CASearchServer\elasticsearch-7.10.2\bin\elasticsearch-service.bat" install 11.0.3
This is the command that the RU installer attempts to run to re-register the new search service, but it fails when it could not find the updated JRE location.