@ Socrates: isn't this thread about France winning the Seven Years War? I agree that this wouldn't only involve Hannover and the rest of Europe, but also a better performance of the OTL losers in their campaigns in the colonial 'theater'.
Sure, but people were talking as if a win in Europe could do it. I'm just saying that wouldn't achieve the goal! It's extremely hard for them to win in North America, although they could do better in India. Still, that means multiple bouts of good fortune for France in different theatres. If you want one POD, have London invaded.