So, as I already mentioned in another post I had this "great" idea to move from a 2013 to a 2016 onpremise server. After removing (guess that was error one) the exchange 2013 server I tried to change the management tools on my desktop as well, which resulted in total desaster.
First the setup refused and said it needed a reboot, so fine I did that.
Then it complained about the setup had not properly finished and I needed to rerun that, which turned out to be impossible as I no longer had any 2013 in my domain.
So I looked it up and found an upgrade switch for the exchange setup, so I though, well, just do something like a management tool upgrade from 2013 to 2016, guess what, this did not work neither.
I got desperate and tried to remove the directory, registry keys I found, the entry in the installed programmes, but still the 2016 setup refuses to start, telling me I have still a 2013 console installed which needs to be gone first.
So my question is, does anyone have an idea how I get this baby rolling again besides reinstalling my whole desktop/move to another pc in order to have local management tools?
Digged into Registry again and removed anything looking remotely like Exchange (searched for "Exchange Server"). Afterwards 2016 setup went through fine and I have an exchange powershell again. Happy Panda :)