Comment 19 for bug 1703506

Found the same problem using Gnome boxes, as I understand it uses QEMU.

Error I see in gnome boxes when I'm trying to install windows 10 vm:
SYSTEM THREAD EXCEPTION NOT HANDLED

Fresh install of Ubuntu 22.04
CPU: AMD Ryzen 7 1700

The solution posted by asd fghjkl (ryzen27) worked for me too:

sudo nano /etc/modprobe.d/kvm.conf
add "options kvm ignore_msrs=1" (without quotes)
reboot