Read the problem more carefully. The OP has a valid licence , clicks on upgrade & is automatically taken to biggest POS Adobe has ever come up with - I refer to Creative Cloud, which we have to do everything through. There is no other way.
I had a similar problem when the CC service borked itself and valid licence "expired" for all my adobe products! WHen I did the reinstall of the CC "controller" the licence was not recognised & reverted to trial - since then I have not been able to get Presenter reinstalled.
Now busily looking for free software - or of equivalent price & ban adobe from my schools computer labs,
I did read it carefully.
From the OP:
Clearly stating that they were using the trial version. So the OP did not have a valid license for Presenter.
As I stated in my other post, Presenter is not part of the Creative Cloud, so I was giving a link to where they could purchase a license for Presenter.
While I am sorry to hear that you are facing problems with CC, I would recomend you contact Adobe Support to get help on resolving this issue. Flaming on a user forum is the long way of solving your problem, and may not result in a resolution. Feel free to reach out to Adobe here: 800-945-9120.
Jorma, sorry, you are wrong. I do have a valid full license as I said in the original comment. Presenter 9, as all Adobe product registration, now goes through Creative Cloud. Thanks KIm, you are correct. Over a 3 hour call to Adobe help, it turned out that indeed Creative Cloud was screwed up. Adobe tech went in and cleared out the Cloud settings on his end and in the computer and then it worked fine.
Sorry I missinterperted you question. I am glad to hear that you got a resolution to your problem, and thank you for sharing it with us.