RHVH 4.4 setup not asking for root pw. default pw?

Hi Community!

I want to tryout the RHVH 4.4 which i downloaded some hours ago (i am new to redhat). in the setup process (via console, usb, putty) i am not asked for a pw for my root/admin

Installation

1) [x] Language settings 2) [x] Time settings
(German (Austria)) (Europe/Vienna timezone)
3) [x] Installation Destination 4) [x] Kdump
(Automatic partitioning (Kdump is enabled)
selected)
5) [ ] Network configuration
(Not connected)

these are the only setup options. after successful installation and reboot the system boots until:

Red Hat Virtualization Host 4.4.3 (el8.3)
Kernel 4.18.0-240.1.1.el8_3.x86_64 on an x86_64

Web console: https://RHVH:9090/

RHVH login:

is there a default pw for the first login and where to set a pw? please help me ;-) cant wait testing the cool stuff i saw at youtube :)