Step by step to install Windows 11 inside qemu using arch/manjaro linux as host OS

(assuming you are using yay as AUR client of pacman)

Install QEMU and GUI client

yay -S qemu virt-manager

sudo systemctl enable libvirtd
sudo systemctl start libvirtd

Configure user to run as

sudo vim /etc/libvirt/qemu.conf

find and set vars inside

user = "root"

group = "root"

Install additionals for TPM emulation/passthrough and secure boot

yay -S edk2-ovmf

find and edit nvram variable as below in

sudo vim /etc/libvirt/qemu.conf

nvram = [
   "/usr/share/OVMF/x64/OVMF_CODE.fd:/usr/share/OVMF/x64/OVMF_VARS.fd",
   "/usr/share/OVMF/x64/OVMF_CODE.secboot.fd:/usr/share/OVMF/x64/OVMF_VARS.fd"
]

Some hacks to make `ofmv` (select chipset, efi and secure boot) working

sudo mv /usr/share/qemu/firmware /usr/share/qemu/firmware-old

restart libvirt, and ensure it was successful

sudo systemctl restart libvirtd
sudo systemctl status libvirtd

Everything is ready to create our VM

Open virt manager, then click + to open VM creation wizard

We are going to perform offline/local installation, ensure architecture selected as below

select the OS image we are going to install from

select RAM and CPU values

create drive image

qemu-img create -f raw /path/to/image/drive_image_name 80G

then select it inside wizard

choose VM name
ensure you have choosen correct drive for future VM
check customize before install
select the network passthrough type and device (virbr0 in our case)
- find your network bridge
```
brctl show
```