Minecraft V1.14.4 is not starting

THe launcher of Minecraft V1.14.4 is not starting Minecraft. After a while I can only see the message "not responding" in the screen.

I have Windows 10 installed and the newest Java Version.

Some troubleshoots in the net told me to delete the bin folder of Minecraft but unfortunately this folder is not in the dedicated mincraft folder applicable.

How can I solve this issue?

BR Dirk