Hi all,
think this problem is sleeping here, this is my solution:
Install 3Ware Patch on Hyper-V Host or physical Server and restart: https://www.3ware.com/3warekb/article.aspx?id=14869&cNode=4F4F0V
After this install newest ESET File Security on all Server and VM.
Thanks all for posting here and big thanks to german support ... it seems to work (if not, I will post it the next days.
Greetings,
Peter