Windows10 で Vagrant が起動しない場合の対処方法

##実行環境

• Windows 10
• Cygwin
• VirtualBox 5.1.6

Vagrant のバージョン確認

$ vagrant -v
Vagrant 1.8.1

VirtualBox のバージョン確認

• VirtualBox 起動
• ファイル→アップデートを確認(H)...

vagrant を起動

$ vagrant up
==>  Provider 'virtualbox' not found. We'll automatically install it now...
     The installation process will start below. Human interaction may be
     required at some points. If you're uncomfortable with automatically
     installing this provider, you can safely Ctrl-C this process and install
     it manually.
==>  Downloading VirtualBox 5.0.10...
     This may not be the latest version of VirtualBox, but it is a version
     that is known to work well. Over time, we'll update the version that
     is installed.

==>  Installing VirtualBox. This will take a few minutes...
     A couple pop-ups will occur during this installation process to
     ask for admin privileges as well as to install Oracle drivers.
     Please say yes to both. If you're uncomfortable with this, please
     install VirtualBox manually.
==>  VirtualBox has successfully been installed!
No usable default provider could be found for your system.

Vagrant relies on interactions with 3rd party systems, known as
"providers", to provide Vagrant with resources to run development
environments. Examples are VirtualBox, VMware, Hyper-V.

The easiest solution to this message is to install VirtualBox, which
is available for free on all major platforms.

If you believe you already have a provider available, make sure it
is properly installed and configured. You can see more details about
why a particular provider isn't working by forcing usage with
`vagrant up --provider=PROVIDER`, which should give you a more specific
error message for that particular provider.

原因

• Vagrant が VirtualBox に対応していない可能性

The VirtualBox provider is compatible with VirtualBox versions 4.0.x, 4.1.x, 4.2.x, 4.3.x, 5.0.x, and 5.1.x. Other versions are unsupported and the provider will display an error message. Please note that beta and pre-release versions of VirtualBox are not supported and may not be well-behaved.
-- https://www.vagrantup.com/docs/virtualbox/

現在もメンテナンスリリースが続いている 5.0.x 及び 5.1.x の一部未対応
■ Github の Issues にも報告あり
[Github (mitchellh/vagrant) - Windows 10, Vagrant 1.8.1, Virtualbox 5.0.12 fails on vagrant up on all boxes #6733] (https://github.com/mitchellh/vagrant/issues/6733)

対処方法1

• VirtualBox のバージョンを 5.0.10 にロールバックする。

Windows 10, Vagrant 1.8.1, Virtualbox 5.0.12 fails on vagrant up on all boxes #6733

対処方法2

• プロパティを変更する。

1. コントロール パネル > ネットワークとインターネット > ネットワーク接続
2. VirtualBoxHost-Only Network > プロパティ
3. VirtualBox NDIS6 Bridged Networking driver をチェック > OK