VirtualBox启动Windows虚拟机时出现NS_ERROR_FAILURE (0X80004005)错误的解决求助

各位大佬好，我最近在启动VirtualBox里的Windows虚拟机时遇到了一个棘手的问题：虚拟机能正常上电，但立刻弹出错误提示，导致无法正常启动。

具体错误信息如下：

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

Result Code:
NS_ERROR_FAILURE (0X80004005)

Component:
ConsoleWrap

Interface:
IConsole {6ac83d89-6ee7-4e33-8ae6-b257b2e81be8}

我之前搜索过virtualbox NS_ERROR_FAILURE (0x80004005)相关的解决方案，按照找到的指南完成了全部3个步骤，但问题还是没有任何改善。现在我实在不知道该怎么进一步排查了，真心希望能得到各位的帮助！

附加硬件信息 #

主板信息 #

# dmidecode 3.3

Getting SMBIOS data from sysfs.

SMBIOS 2.7 present.

Handle 0x0002, DMI type 2, 16 bytes

Base Board Information

Manufacturer: Hewlett-Packard

Product Name: 198F

Version: KBC Version 15.59

Serial Number: PDXVC001X6NEGW

Asset Tag: Not Specified

Features:

Board is a hosting board

Board is replaceable

Location In Chassis:

Chassis Handle: 0x0003

Type: Unknown

Contained Object Handles: 0

BIOS信息 #

BIOS Information

Vendor: Hewlett-Packard

Version: L71 Ver. 01.39

Release Date: 09/26/2016

Address: 0xF0000

Runtime Size: 64 kB

ROM Size: 8 MB

Characteristics:

PCI is supported

PC Card (PCMCIA) is supported

BIOS is upgradeable

BIOS shadowing is allowed

Boot from CD is supported

Selectable boot is supported

EDD is supported

Print screen service is supported (int 5h)

8042 keyboard services are supported (int 9h)

Serial services are supported (int 14h)

Printer services are supported (int 17h)

ACPI is supported

USB legacy is supported

Smart battery is supported

BIOS boot specification is supported

Function key-initiated network boot is supported

Targeted content distribution is supported

UEFI is supported

BIOS Revision: 1.39

Firmware Revision: 21.89

系统信息 #

System Information

Manufacturer: Hewlett-Packard

Product Name: HP EliteBook 840 G1

Version: A3009DD10303

Serial Number: CNU421B1DS

UUID: 2b64bbff-8540-11e3-b4b3-c316d107e0ff

Wake-up Type: Power Switch

SKU Number: G9T17EP#ABU

Family: 103C_5336AN G=N L=BUS B=HP S=ELI

备注：内容来源于stack exchange，提问作者Xaver