other: 0.921 semantic: 0.856 device: 0.846 graphic: 0.826 performance: 0.798 files: 0.721 network: 0.690 vnc: 0.683 permissions: 0.674 PID: 0.644 debug: 0.604 socket: 0.549 boot: 0.525 KVM: 0.221 Can't install virtio block drivers during Windows setup Hi! Apparently there's no way to install the virtio block drivers during Windows setup, as they're simply not recognized by the installer when it looks for them on the CD drive. The only way to setup virtio block drivers is to first install Windows on a IDE drive, then add a dummy virtio disk, then load the drivers and swap the two disks. I'm using virtio-win-0.1-81.iso. I can confirm the issue with Windows Server 2012 R2 and Windows 7 Professional, 64 bit. Thanks! Looks like nobody replied here within the last three years ... closing this now, since this is not directly a QEMU problem. You should likely report it to the virtio-win driver folks instead if the problem still persists.