Some sites offer VHD images for Microsoft Virtual PC , which can be converted to Qcow2 using the qemu-img tool. How to Create Your Own Windows Vista Qcow2
Build your own Vista Qcow2 from a licensed ISO. If you absolutely need a pre-made download, only use sources like OSBoxes or the Internet Archive’s verified users, and always run malware scans. Virtualization is about preserving computing history—not repeating security mistakes. Windows Vista Qcow2 Download
This is ideal if you previously used Vista on VMware Workstation. Some sites offer VHD images for Microsoft Virtual