A method for preventing trojans from starting with the program

We know that some Trojans are implemented along with the EXE by modifying the file association of the EXE ProgramStarted. Today, I saw another explicit method on the Internet, that is, through the HKEY_LOCAL_MACHINE \ Software in the registry.
\ Microsoft \ Windows NT \
CurrentVersion \ Image File
Execution options

The full path of the worker.

Obviously, this is implemented by setting the error correction program specified by each program for the system. In my opinion, a.exe does not need to specify the path!

Therefore, when looking for Trojans, you should pay attention to one more place. However, I think the method for searching the registry is more direct.

Statement: the purpose of the materials I provide is to enable Windows users to better maintain system security, and I strongly oppose using this method for any intrusion or damage!