Longhorn is notoriously unstable. A registry edit or a driver installation often leads to a blue screen (BSOD). QCOW2 supports native, instantaneous snapshots.
Longhorn is notorious for disk thrashing. The "WinFS" service (if enabled in builds 400x-403x) constantly indexes the drive. In QCOW2, this causes massive fragmentation of the backing file. windows longhorn qcow2
qemu-system-i386 -hda longhorn.qcow2 \ -cdrom longhorn_4074.iso \ -boot d -m 1G -accel kvm \ -vga cirrus -usbdevice tablet \ -rtc base="2004-05-04",clock=vm Use code with caution. Pro-Tips for a Stable Experience Software Overview: Intro to Windows "Longhorn" (2007) Longhorn is notoriously unstable
Longhorn builds are notoriously unstable. QCOW2 allows you to save "good" states and revert instantly if a driver crash ruins the OS. Longhorn is notorious for disk thrashing
: Because Longhorn is notoriously unstable on physical hardware, users typically create a QCOW2 image to host it. A common command for this is: qemu-img create -f qcow2 longhorn.qcow2 20G The "Timebomb"
: Organizations use this "Longhorn" to provide persistent storage for virtual machines (often Windows 10 or 11) managed by tools like QCOW2 Integration