you just said that Bohemia, an elector, isn't your vassal.
Previous posts said that ALL electors must be vassals.
before you can disband the empire, grab the last free elector. Even if he votes for you.
That's besides the point.
Vassalize all electors and occupy the capital of the current emperor, then in the HRE window you can dismantle the HRE.
I can't very well "occupy" my own capital.
no, you need to vassalize all electors and the emperor. The number of states in the HRE has no effect on its existence, except obviously when there are none.
I can't vassalize myself either.
Further more, the "Dismantle HRE" button in my game is greyed out with the tooltip saying "You can not dismantle the empire if you are the current emperor". So apparently as long as I am the emperor, I can not dismantle the HRE. And trying to let someone else take the throne would be too much trouble. It would requires to either release electors (and then forcing vassalization on them again...), insult the shit out of everyone for the next years or switching to a government that can't be elected, but that might jeopardize my current PU... or not, IDK.
Anyway, it's not really a problem. I will just focus on the other nations outside the HRE.
England Great Britain is ripe for a beating. Spain annexed Flanders (got core, do want) right under my nose while I was fighting France. Ottomans really need to be stopped. North American nations are begging to be annexed. My ships have started exploring the Indian Ocean, thus opening brand new opportunities. It's not like being stuck with the HRE is a burden on my progress, it's merely an annoyance.
Edit: Wooo! I'm playing at the same time I was writing this. Fought and won a first war against GB (started by Denmark sadly, so nothing gained), but more importantly: my king died, all hail the king! Inherited Baden, a 6 provinces nation, and Austria, a 17 badass nation.