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Windows10でvagrant upを実行すると「VT-xが無効」になっているというエラーの解決

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環境

PC: HP ProDesk 400 G3 SFF
windows10 Home
Vagrant 2.2.14
ORACLE VM VirtualBox 6.1
VagrantBox centOS-7.7
PowerShell

現象

Vangrant up を実行すると以下のようなエラーが発生する

> vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Checking if box 'bento/centos-7.7' version '202005.12.0' is up to date...
==> default: Clearing any previously set forwarded ports...
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
    default: Adapter 2: hostonly
==> default: Forwarding ports...
    default: 22 (guest) => 2222 (host) (adapter 1)
==> default: Booting VM...
There was an error while executing `VBoxManage`, a CLI used by Vagrant
for controlling VirtualBox. The command and stderr is shown below.

Command: ["startvm", "e866d576-5a9b-4e45-bf9c-65ade2149b42", "--type", "headless"]

Stderr: VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE).
VBoxManage.exe: error: VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole

原因

エラーメッセージある

VBoxManage.exe: error: VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED)

VT-xが無効になっているよ。全てのCPUモードに対するBIOSでね。(という感じの意味だと)

解決策

WindowsのBoot設定からVT-xというものを有効にする。

私のPCはWindowsの起動画面でESCを連打することで起動できます。

端末によって連打するファンクションキーは違うので調べましょう。

Bootの設定画面

unnamed.jpg

BIOS SETUPを選択

unnamed (1).jpg

Advancedを選択

unnamed (2).jpg

System Options を選択

やっと見つけました
Virtualization Technology(VTx)

これにEnterでチェックを入れ、変更を保存して起動し直してからVagrant upを実行すると問題なく実行されました。

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