other: 0.217 semantic: 0.176 device: 0.124 files: 0.071 PID: 0.057 vnc: 0.051 performance: 0.048 graphic: 0.048 permissions: 0.048 debug: 0.041 socket: 0.039 boot: 0.032 network: 0.030 KVM: 0.019 network: 0.178 other: 0.146 files: 0.138 socket: 0.134 device: 0.101 debug: 0.063 PID: 0.048 semantic: 0.041 boot: 0.031 vnc: 0.029 performance: 0.027 KVM: 0.025 permissions: 0.024 graphic: 0.015 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.