Basically, all operating systems can be installed, as long as they are compatible with the hardware used.
By default, our servers can be equipped with various Linux distributions such as (CentOS, Debian, Ubuntu) or Windows.
With our new Cloud-Solution virtual Datacenter (vDC) you have the possibility to use your own ISOs and thus install an operating system of your choice. Here you can find more product information.
Learn how to use this in practice in this video tutorial.