I just ran into this issue installing Windows 11 from a bootable USB drive, created by the Win11 MCT. After retrying the installation it did work though.

@David Molnar for me (on Hper-V) the only solution that worked was to disconnect from the internet virtual switch. Then when I tried again - everything was okay :)

I removed the floppy drive, but it does not work. Second time, I unchecked the checkbox for power on the floppy at the start and it worked.

Thank you so much.

@Dave Patrick 

@Jason Stone thanks!  this worked for me.  I was trying to set up a VM with Hyper-V, and was not able to install Win 10 pro.  I selected static ram and installation of Windows succeeded.