: Uses hardware acceleration (requires Linux host with KVM).
Select the driver and click . Your QCOW2 disk should now appear in the list.
A legitimate installation image (64-bit recommended).
Use qemu-img in your terminal to create the disk (e.g., 40GB): qemu-img create -f qcow2 windows81.qcow2 40G Use code with caution. -f qcow2 : Specifies the format. windows81.qcow2 : The name of the file. 40G : The maximum size of the virtual disk 1.2.4 . Step 2: Set Up the Virtual Machine (Virt-Manager) Using makes the process user-friendly: Open Virt-Manager and create a new Virtual Machine. windows 81 qcow2 install
Note: If the Windows installer does not see the hard drive, use the "Load Driver"
to install any remaining drivers (such as the Balloon driver) from the VirtIO ISO. Super User Further Exploration
: Allocates 4 GB of RAM and 2 CPU cores to the virtual machine. : Uses hardware acceleration (requires Linux host with KVM)
By encapsulating it within a QCOW2 image, you are not just installing an OS; you are creating a portable, snapshot-able artifact. You can compress the file, encrypt it with LUKS, or migrate it to a server in seconds. While Windows 8.1 fades into obsolescence, the QCOW2 format ensures that the environment remains accessible, efficient, and contained for as long as the data remains relevant.
Note the bus=sata parameter—this avoids the need to load VirtIO drivers during installation, allowing the installer to detect the disk immediately. You can convert to VirtIO later by installing the drivers and changing the bus type.
Install the necessary virtualization packages: A legitimate installation image (64-bit recommended)
After the initial OS installation, the virtual machine may still use emulated hardware, leading to poor disk and network performance. Installing VirtIO drivers greatly improves I/O throughput.
: The 40GB QCOW2 unallocated space will now appear. Select it, click Next , and let the installation complete. The VM will reboot automatically. Step 4: Post-Installation and Network Setup
Installing Windows 8.1 on a image via QEMU is a standard process that involves creating a virtual disk, booting from an ISO, and potentially loading VirtIO drivers for better performance. 1. Create the qcow2 Disk Image First, use the tool to create a virtual hard drive. A
