OH3 on Windows10 - launching runtime fails

I tried to install OH3 on WIndows 10 as described in Windows | openHAB
Java 11 is installed. OH3 files are unzipped in D:\openhab3. When executing start.bat in the Karaf console the following error message occurs (in rough translation: “8” cannot be syntactically processed here)

Launching the openHAB runtime…
“8” kann syntaktisch an dieser Stelle nicht verarbeitet werden.

What’s going wrong?

Problem solved! Seems that something went wrong when I installed Java by zip file. I repeated it with msi file. Now it works!!!
How can I close this thread?