$ vagrant UP
Bringing machine 'default' UP WITH 'virtualbox' provider...
==> default: Box 'scotch/box' could NOT be found. Attempting to find AND install                                                                                                                ...
    default: Box Provider: virtualbox
    default: Box Version: >= 0
==> default: Loading metadata for box 'scotch/box'
    default: URL: https://atlas.hashicorp.com/scotch/box
==> default: Adding box 'scotch/box' (v2.5) for provider: virtualbox
    default: Downloading: https://atlas.hashicorp.com/scotch/boxes/box/versions/                                                                                                                2.5/providers/virtualbox.box
    default:
==> default: Successfully added box 'scotch/box' (v2.5) for 'virtualbox'!
==> default: Importing base box 'scotch/box'...
==> default: Matching MAC address for NAT networking...
==> default: Checking if box 'scotch/box' is UP to date...
==> default: Setting the name OF the VM: scotch-box_default_1487959811423_88822
==> default: Clearing any previously set network interfaces...
There was AN error WHILE executing `VBoxManage`, a CLI used by Vagrant
for controlling VirtualBox. The command AND stderr is shown below.

Command: ["hostonlyif", "create"]

Stderr: 0%...
Progress state: E_FAIL
VBoxManage.exe: error: Failed to create the host-only adapter
VBoxManage.exe: error: Operation canceled by the user
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component VirtualBoxWr                                                                                                                ap, interface IVirtualBox
VBoxManage.exe: error: Context: "enum RTEXITCODE __cdecl handleCreate(struct Han                                                                                                                dlerArg *)" AT line 71 OF FILE VBoxManageHostonly.cpp