Quickemu

https://github.com/quickemu-project/quickemu

Start our Windows 10 VM to show the name of the qcow2 file:

quickemu --vm windows-10.conf --display spice

#  Quickemu 3.11 using /usr/bin/qemu-system-x86_64 v6.0.0
# - Host:     Ubuntu 21.04 running Linux 5.11 (pc-c)
# ...
# - Disk:     windows-10/disk.qcow2 (64G)

For information, find the name of the qcow2 file, shutdown the VM:

qemu-img info windows-10/disk.qcow2

To increase the size of the hard drive:

qemu-img resize windows-10/disk.qcow2 +100G

virtio-win

https://github.com/virtio-win

In your Windows install, browse to CD Drive (E:) virtio-win-x.x.xxx.

Double click on virtio-win-guest-tools.exe and install all the options.

Windows will behave 100% more like Windows!