Acer Predator PHN16-73-9301, VT-x and VT-d are enabled in the BIOS, Windows 11 does not detect them

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gilvivasjubal
gilvivasjubal Member Posts: 1 New User
edited August 1 in Predator Laptops

Hello,
I have an Acer Predator PHN16-73-9301, with an Intel Ultra 9 275HX CPU.
VT-x and VT-d are enabled in the BIOS, but Windows 11 does not detect them.
The diagnostic script reports:
VirtualizationFirmwareEnabled: False
SecondLevelAddressTranslationExtensions: False

I need to run nested virtualization with VMware Workstation (e.g., EVE-NG or ESXi for nested VM).

Could you please confirm:

  • If a BIOS update exists that exposes these virtualization features
  • If any advanced options (SLAT, EPT, Modern Standby, etc.) need to be unlocked

Thank you for your support.

Jubal

[Edited the thread to add issue detail]

Answers

  • StevenGen
    StevenGen ACE Posts: 15,036 Trailblazer

    Follow the below guide to solve this virtualization error and make also sure that you have the last PHN16-73 bios 1.07 installed, we can't tell you if there will be a new bios version released from Acer for this model laptop. Good luck and hope this helps you out.

    PHN16-73 BIOS Advanced section for VTX and VTD

    image.png

    Resolving VMware Workstation Nested Virtualization Error

    The error "VMware Workstation does not support nested virtualization on this host. Module 'HV' power on failed" occurs when nested virtualization is not properly configured or conflicts exist with system settings like Hyper-V or Virtualization-Based Security (VBS).

    Example

    VMware Workstation does not support nested virtualization on this hostModule 'HV' power on failedVirtualized AMD-V/RVI is disabled for this ESX virtual machineFailed to start the virtual machine

    Steps to Resolve

    1. Enable Virtualization in BIOS

    Ensure that Intel VT-x or AMD-V is enabled in your system's BIOS/UEFI settings. Restart your system and access the BIOS menu to enable these features.

    2. Disable Hyper-V and Related Features

    Hyper-V conflicts with VMware's nested virtualization. Disable it using the following steps:

    • Open Control Panel > Programs > Turn Windows features on or off.
    • Uncheck Hyper-VVirtual Machine Platform, and Windows Hypervisor Platform.
    • Run the following command in an elevated Command Prompt:

    bcdedit /set hypervisorlaunchtype off

    • Restart your system.

    3. Turn Off Virtualization-Based Security (VBS)

    VBS can block nested virtualization. Disable it as follows:

    • Open Windows Security > Device Security > Core Isolation Details.
    • Turn off Memory Integrity.
    • Restart your system.

    4. Configure VMware Settings

    Ensure that the VM is configured to support nested virtualization:

    • Open VMware Workstation, go to the VM's settings.
    • Under Processors, check the option Virtualize Intel VT-x/EPT or AMD-V/RVI.

    5. Update VMware Workstation

    Ensure you are using the latest version of VMware Workstation (e.g., version 17 or higher), as older versions may lack proper support for nested virtualization.

    By following these steps, you should be able to resolve the error and enable nested virtualization successfully.

    If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful👍