title: error while executing `VBoxManage` (vagrant/ virtualbox)
body: <p>I'm following the installation tutorial from Data Science at the Command Line which includes the following steps:</p>
  
  <pre><code>$ mkdir MyDataScienceToolbox
  
  $ cd MyDataScienceToolbox
  
  $ vagrant init data-science-toolbox/data-science-at-the-command-line
  
  $ vagrant up
  </code></pre>
  
  <p>This works perfectly on one of my computer but not the other. Why?</p>
  
  <p>Both computers are using Virtualbox version:4.3.12 and Windows 7.</p>
  
  <p>This is the error message:</p>
  
  <pre><code>$ vagrant up
  Bringing machine 'default' up with 'virtualbox' provider...
  ==&gt; default: Importing base box 'data-science-toolbox/data-science-at-the-command-line'...
  There was an error while executing `VBoxManage`, a CLI used by Vagrant
  </code></pre>
  
  <p>for controlling VirtualBox. The command and stderr is shown below.</p>
  
  <pre><code>Command: ["import", "C:\\Users\\bernard\\.vagrant.d\\boxes\\data-science-toolbox-VAGRANTSLASH-data-science-at-the-command-line\\0.0.5\\virtualbox\\box.ovf", "--vsys", "0", "--vmname", "packer-virtualbox-iso_1410075150030_92186", "--vsys", "0", "--unit", "7", "--disk", "C:\\cygwin64\\home\\bernard\\VirtualBox VMs\\packer-virtualbox-iso_1410075150030_92186\\packer-virtualbox-iso-disk1.vmdk"]
  
  Stderr: 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
  Interpreting C:\Users\bernard\.vagrant.d\boxes\data-science-toolbox-VAGRANTSLASH-data-science-at-the-command-line\0.0.5\virtualbox\box.ovf...
  
  OK.
  0%...
  Progress state: VBOX_E_FILE_ERROR
  VBoxManage.exe: error: Appliance import failed
  VBoxManage.exe: error: Could not create the clone medium 'C:\cygwin64\home\bernard\VirtualBox VMs\packer-virtualbox-iso_1410075150030_92186\packer-virtualbox-iso-disk1.vmdk'.
  VBoxManage.exe: error: VMDK: cannot write allocated data block in 'C:\cygwin64\home\bernard\VirtualBox VMs\packer-virtualbox-iso_1410075150030_92186/packer-virtualbox-iso-disk1.vmdk' (VERR_DISK_FULL)
  VBoxManage.exe: error: Details: code VBOX_E_FILE_ERROR (0x80bb0004), component Appliance, interface IAppliance
  VBoxManage.exe: error: Context: "int __cdecl handleImportAppliance(struct HandlerArg *)" at line 779 of file VBoxManageAppliance.cpp
  </code></pre>