sUBs, the developer of ComboFix, has asked that the inner workings of the tool not be discussed in public
in order to safeguard and protect the integrity of the tool
from malware writers.
ComboFix usage, Questions, Help? - Look hereSafeguarding
Questions about ComboFix and how it works:
ComboFix from malware writers is necessary and important
so that we can continue to use it without attackers having knowledge how to defeat it. Everything we discuss can be read by the bad guys. Yes, they read forum topics looking for clues on how to circumvent our tools. We don't want to provide any information they can use against us so we deliberately limit discussion in public areas which sometimes may appear vague or not fully address a specific question. That's the decision by the creator of ComboFix so we hope you understand and it should not be taken personal.
Without going into specifics, I can tell you ComboFix creates it logs/folders at the root of systemdrive by design.
The proper removal of its folders, files and logs is to uninstall ComboFix following these instructions