How could Hitler have changed his strategy to have won World War 2?

There's been numerous attempts by people to argue that he could've won if he did just this one thing differently. Quite honestly, it's bunk.

This question details how one of those scenarios wouldn't have worked either.

This is yet another example.

This asks how he could've won on the eastern front. Quite frankly, he couldn't have.

The main problem here is that this question is a huge "what if", of proportions we can't really answer. We can say that based on all information available, Hitler didn't stand a chance making decisions in the situation he was in. His choices at the time were based on uncertain variables he didn't have control over, like the commitment to the war effort the US would bring, the Soviet movements and actions in Stalingrad, etc. As they say, hindsight is 20/20, and we can argue about how he might have won every day, but unfortunately when push comes to shove, his chances were dim at best and none at worst throughout much of the war as he waged it. There's no single point we can choose to say "Here's where he lost", unfortunately, because it was an amalgamation of many factors, and no one can wage a perfect war against similarly unpredictable human beings!

I wish I could give you an answer, but unfortunately I don't think there is one.