Go to your VM's Hardware settings, select the CD/DVD Drive, edit it, and choose the SPICE guest tools ISO.

A Windows Virtual Machine running on KVM/QEMU (Proxmox, GNOME Boxes, Virt-Manager). The spice-guest-tools-win-0.164.iso file downloaded.

Before installing the tools, your VM must be in a running state. Here is the preparation checklist:

If copy-paste functionality fails after rebooting, the vdagent service might be stopped. Press Win + R , type services.msc , and press Enter. Locate .

You must expose the downloaded ISO to the Windows guest OS through your hypervisor management tool, such as Virtual Machine Manager ( virt-manager ) or Proxmox VE. Open on your host system.

Click the link to download the ISO file to your host machine.

Automatically resizes the VM resolution when you resize the window. No more restricted, tiny 800x600 fixed displays.

The spiceguesttools0164iso file represents a critical upgrade for any Windows virtual machine. By following the steps outlined in this guide—downloading the package, installing it as an administrator, and rebooting—you will transform a basic VM into a high-performance, user-friendly environment.

sudo pacman -S spice-vdagent qemu-guest-agent sudo systemctl enable --now spice-vdagent sudo systemctl enable --now qemu-guest-agent

Resizing your VM viewer window automatically scales the guest OS resolution.