Upgrade Windows 10 Cloud to a different SKU. Windows 10 Cloud is expected to be a lightweight version of Windows. Windows 10 Cloud is a new SKU which is very similar to Windows RT as it will only allow you to run apps from the Windows Store (UWP).
Windows 10 Cloud users will be able to upgrade the SKU to another SKU of Windows 10 such as Pro or EDU.

It is important to note that this is an early version of Windows 10 Cloud. Moreover, we aren’t quite sure if Microsoft will allow users to upgrade Windows 10 Cloud to other versions of Windows 10 such as the Home SKU which is cheaper than Pro.