title: Vagrant up after upgrade to Windows 10
body: <p>I am trying to vagrant up after my recent upgrade to windows 10, and I get an error:</p>
  
  <pre><code>==&gt; 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: Code E_FAIL (0x80004005) - Unspecified error (extended info not available)
  VBoxManage.exe: error: Context: "int __cdecl handleCreate(struct HandlerArg *,int,int *)" at line 66 of file VBoxManageHostonly.cpp
  </code></pre>
  
  <p>Before the upgrade it worked fine, has anyone figured out how to fix this?</p>