Windows 81 Qcow2 Install |top| -

Installing Windows 8.1 using a (QEMU Copy-On-Write) disk image is a popular choice for users running Linux-based virtualization like KVM/QEMU or Proxmox . This format is highly efficient because it starts small and grows only as data is added.

Verdict

: Standard Windows installers don't recognize QEMU's high-performance virtual hardware by default. Download the latest virtio-win.iso from the Fedora Project to ensure your virtual disk and network are detected. Virtualization Software : Linux : Install qemu-kvm , libvirt , and virt-manager .

If you used if=virtio for the disk, Windows won't see your QCOW2 drive initially. Click "Load Driver" and browse the VirtIO CD-ROM (usually under viostor\w8.1\amd64 ) to find the disk driver. windows 81 qcow2 install

Select "Windows 8.1" or "Windows 7" (if 8.1 is not listed).

Then, use a slightly modified command to boot from the ISO and install Windows onto the .qcow2 image:

What or hypervisor (Ubuntu, Arch, Proxmox, etc.) are you utilizing? Installing Windows 8

Download the latest Fedora VirtIO drivers for Windows ⁠1.2.2 .

A well-tuned Windows 8.1 on QCOW2 (with VirtIO) should achieve near‑bare‑metal disk speeds – over 1 GB/s sequential with NVMe backend and cache=none.

Boot without the Windows ISO:

Step-by-Step: Installing Windows 8.1 from a QCOW2 Image

You must boot the VM using the Windows ISO and the VirtIO Driver ISO simultaneously.