ZimbraConnectorOLK_8.6.0.1320_x64.msi Installation interrupted - Office2016

[f.lanzeray]

Hello everybody,
I have a problem regarding the installation of the newest Zimbra Outlook Connector (ZimbraConnectorOLK_8.6.0.1320_x64.msi).
First, when Office2016 was released the version 1307 and 1316 couldn't be installed with the error message: 
"Click-to-Run editions of Outlook are not supported by the Connector."

This bug was already mentioned here: c24https://bugzilla.zimbra.com/show_bug.cgi?id=101261#c24
At the very bottom of this bugzilla thread, the downloadlinks for the new ZCOs are mentioned (ZimbraConnectorOLK_8.6.0.1320_x64.msi).
As I have a 64bit Office2016 I downloaded the 64bit installer from here: https://community.zimbra.com/collaborat ... /t/1140361

With this new installer, the installation doesn't fail with the error regarding the Click to Run version (mentioned above) but with the general error "Installation interrupted".
After this I can only close the window. It is the same error you'd get when you just hit the red close button in the top right corner of the installation window.
Has anyone an idea how to fix that?
My SetUp:
Win10 Pro 64bit
Office 64bit

It's the first I try to use ZCO. So there are no older versions of ZCO installed on my computer.