It is possible to install Windows on your KVM VPS. But it is not possible to choose Windows to be installed right away when you order a new KVM VPS.

Microsoft Windows needs to be installed manually and can not be selected in the shopping-cart

Therefore the steps to get a KVM with Windows are:

1. When you order a new KVM VPS on which you want to install Windows, please order the KVM with a random OS.
2. Once the KVM VPS has been setup and delivered, you can manually reinstall your VPS with Windows using VNC.