This question already has an answer here:
Often after asking a question, the OP realizes that he made a mistake asking the question. Then the question starts getting downvotes and they might be reasonable too. What should I do as an OP to the question? Editing the question is an option; but if the question is really a bad question, we can't improve it by editing unless we ask a totally different question editing the original one. So in that case, if the question itself is outright wrong, what should I do to make it a better question to serve the community?