Download the Win-Virtio Driver and load it on VM CDRom Drive. Download can be found here:
https://pve.proxmox.com/wiki/Windows_VirtIO_Drivers
Now install the Virtio Balloon driver AND the Balloon service in the guest as follows:
- Open Device Manager and see if there is an unknown PCI device. If so, right click it and install the driver manually from D:\Balloon\2K16\amd64 (or 2k12, 2k8, etc)
- Now copy the entire amd64 folder into C:\Program Files\ (NOT x86) and rename it “Balloon”. So, now you have the amd64 folder from the disc copied as C:\Program Files\Balloon
- Open an Administrative Command Prompt and cd to C:\Program Files\Balloon
- Run this command:
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