My platform: OSX Mavericks, Virtualbox 4.2.10 (the latest)
Downloads ok. Unzips ok, but then gives the following output:
VBoxManage: error: 'Windows10_64' is not a valid Guest OS type
VBoxManage: error: Details: code NS_ERROR_INVALID_ARG (0x80070057), component VirtualBox, interface IVirtualBox, callee IAppliance
VBoxManage: error: Context: "Interpret" at line 330 of file VBoxManageAppliance.cpp
My platform: OSX Mavericks, Virtualbox 4.2.10 (the latest)
Downloads ok. Unzips ok, but then gives the following output: