This is a paragraph describing a computer security software, in order to help you understand more of the context.
Panda protects its Registry entries against illicit modification, so I couldn't just set "firewall=disabled" in the Registry. I also couldn't terminate its processes using Task Manager. However, a somewhat complex series of actions allowed me to disable its essential services. My Panda contact indicated that it is designed to recover in this situation, but I didn't see that happen. While a malware coder could write code to disable protection in this way, though it would be a complex task.
The last sentence contains both words 'while' and 'though'. Is the word 'though' necessary in this case? Will the sentence sound natural to native speakers if I keep only one of these word (either 'while' or 'though')? Could you give me more examples of using both these words in the same sentence?