: The drive selection screen will appear empty. This is expected because Windows cannot see the VirtIO QCOW2 disk yet. Click Load Driver in the bottom-left corner.
You will need an official Windows 8.1 ISO file. Make sure you choose the 64-bit (x64) version for better performance and application compatibility. 3. Download VirtIO Drivers (Crucial Step)
bus=virtio : Forces the QCOW2 storage controller to interface via VirtIO rather than mimicking an antiquated, slow IDE interface.
Installing Windows 8.1 as a guest on KVM/QEMU is a multi-step process that involves creating a .qcow2 disk image, performing the standard OS installation, and loading the critical VirtIO drivers. With the additional optimizations discussed, you can achieve a virtualized system that is responsive and stable for a variety of use cases. windows 81 qcow2 install
qemu-system-x86_64 -m 8192 -smp 2 -boot d \ -drive file=win8.1.qcow2,if=virtio,cache=none \ -cdrom Windows_8.1_Pro.iso \ -device virtio-net-pci,netdev=net0 -netdev user,id=net0 \ -enable-kvm -vga qxl
Navigate down the directory structure to locate the appropriate storage driver: viostor -> w8.1 -> amd64 (or x86 if using a 32-bit ISO).
Point it to the root of the . Windows will automatically find and install the Network, Balloon, and Guest Agent drivers. Why Use QCOW2 for Windows 8.1? : The drive selection screen will appear empty
Once the virtual machine fires up, follow standard installation procedures with one critical deviation:
qemu-system-x86_64 \ -m 4096 \ -smp 2 \ -cpu host \ -drive file=win81-disk.qcow2,format=qcow2,if=virtio \ -drive file=win81-install.iso,media=cdrom \ -drive file=virtio-win.iso,media=cdrom \ -drive if=pflash,format=raw,readonly=on,file=/usr/share/OVMF/OVMF_CODE.fd \ -drive if=pflash,format=raw,file=/usr/share/OVMF/OVMF_VARS.fd \ -enable-kvm \ -vga qxl
Maximize your Windows 8.1 QCOW2 environment with these system tweaks: You will need an official Windows 8
Are you planning to run this VM on , unRAID , or a standard Linux KVM setup?
When setting up the VM (via virt-manager or command line), use these settings for optimal compatibility: : q35 .
Note: The -device usb-tablet flag maps the mouse coordinates correctly so that your graphical pointer tracks without stuttering or offset anomalies. Windows 81 Qcow2 Install __top__ Direct - User's blog -
Replace path/to/windows8.1.iso with the actual path to your Windows 8.1 ISO image.
Getting Windows 8.1 running on a QCOW2 image—whether you're using Proxmox, KVM, or QEMU—is a solid move for legacy software support or performance testing. While it is an older OS, following the right driver and configuration steps will save you from common "no disk found" errors. 1. Preparation and Core Requirements