Не работает VT-x в VirtualBox после обновления на Windows 11

После обновления до Windows 11 перестал работать VT-x в VirtualBox.

00:00:05.852762 HM: HMR3Init: Attempting fall back to NEM: VT-x is not available
00:00:05.966704 NEM:  info: Found optional import WinHvPlatform.dll!WHvQueryGpaRangeDirtyBitmap.
00:00:05.966717 NEM:  info: Found optional import vid.dll!VidGetHvPartitionId.
00:00:05.966722 NEM:  info: Found optional import vid.dll!VidGetPartitionProperty.
00:00:05.966788 NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...
00:00:05.966793 NEM: WHvCapabilityCodeExtendedVmExits      = 0x0000000000007fff

[пропущено для краткости]

00:00:05.968227 NEM: Adjusting APIC configuration from X2APIC to APIC max mode.  X2APIC is not supported by the WinHvPlatform API!
00:00:05.968230 NEM: Disable Hyper-V if you need X2APIC for your guests!
00:00:05.968455 NEM:
00:00:05.968456 NEM: NEMR3Init: Snail execution mode is active!
00:00:05.968456 NEM: Note! VirtualBox is not able to run at its full potential in this execution mode.
00:00:05.968456 NEM:       To see VirtualBox run at max speed you need to disable all Windows features
00:00:05.968456 NEM:       making use of Hyper-V.  That is a moving target, so google how and carefully
00:00:05.968456 NEM:       consider the consequences of disabling these features.
00:00:05.968456 NEM:
00:00:05.968487 CPUM: No hardware-virtualization capability detected

В Windows 10 эта часть лога выглядела так:

00:00:08.088362 HM: HMR3Init: VT-x w/ nested paging and unrestricted guest execution hw support
00:00:08.088503 CPUM: fXStateHostMask=0x7; initial: 0x7; host XCR0=0x1f

"Грязное" исправление выглядит так: bcdedit /set hypervisorlaunchtype off. После этого перезагрузился и теперь VirtualBox работает как и прежде. Скорее всего есть более правильный способ выключить такое поведение, но разбираться пока времени нет.

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