How to enable VT-d on hp omen by oblisk

[S1Ayano]

I have my kernel dma protection off, i want it to be on, but to do that i must enabe VT-d in bios and there is no option for that. There is only Virtualization Technology option that is VT-x but not for VT-d, I want to know if it is supported by my pc and permanently enabled or not. Could the kernel dma protection be blocked by windows or something? I have Hp Omen Desktop by Obelisk 875-0014

[Deep_World]

Hi  @S1Ayano,
 
Welcome to the HP Support Community!

Thanks for reaching out!

I Understand your concern, Please note your HP Omen Obelisk 875-0014 does support Intel Virtualization (VT-x), but to check if VT-d (IOMMU for DMA protection) is enabled in firmware without a visible BIOS toggle. Kernel DMA Protection in Windows requires both VT-d and proper Secure Boot/TPM settings, so if it shows disabled, it could be due to BIOS configuration or Windows security policies.

Let’s try  a few steps to confirm whether VT-d is active and ensure Kernel DMA Protection can be enabled.

1.Confirm BIOS Virtualization Settings

Ensure Intel Virtualization Technology (VT-x) is enabled, as it is a prerequisite for VT-d.

Restart PC → Press F10 at HP logo → BIOS Setup → Advanced tab

Locate Virtualization Technology

Ensure it is set to Enabled

Save changes with F10

2.Check for Secure Boot and TPM

Critical for DMA Protection

Windows Kernel DMA Protection requires Secure Boot and TPM 2.0 to be active.

BIOS Setup → Security tab

Enable Secure Boot

Enable TPM Device or fTPM

Save and exit BIOS

3.Verify VT-d Status in Windows

Even if BIOS doesn’t show VT-d, Windows can confirm if it’s active.

Open System Information (Win + R → type msinfo32)

Look for Device Guard and Virtualization-based Security entries

If VT-d is supported, it will show as enabled

I hope this helps.