Windows 7qcow2 Best Here

: The QCOW2 format works excellently with Windows 7 – the OS itself is the real problem today.

Achieving the "Best" Windows 7 QCOW2 Experience: Performance and Optimization Guide windows 7qcow2 best

If you are looking for the absolute maximum raw speed, skipping qcow2 and using a raw block device or a raw image file is better, but you will lose snapshot functionality. : The QCOW2 format works excellently with Windows

Open terminal and run:

(QEMU Copy-On-Write) format is the standard for KVM environments because it supports advanced features like snapshots and thin provisioning. Proxmox Support Forum Space Efficiency Proxmox Support Forum Space Efficiency To move beyond

To move beyond basic VGA resolutions and choppy performance, install the Spice Guest Tools within the VM. QXL Driver

Windows 7 was built for bare-metal mechanical hard drives from 2009. Running it inside a modern QCOW2 container requires modifying several internal OS systems to stop unnecessary background disk degradation: Disable Disk Defragmentation