08-11-2025 03:30 AM
I have tried to load Cisco Modeling Lab 2.7 and 2.4 on two different PC laptops (Samsung and Asus). Both machines met the system requirements to run CML. I used VMware Workstation Pro as the host and on both machines I was running Windows 11 Pro. When I try to run the VM for CML I receive an error saying that I need to ensure Virtualization is enabled. When I researched this, I was directed to check to ensure Virtualization was enabled on the BIOS. On the BIOS for both machines, that is not an option. I opened a ticket with Asus regarding the issue to verify virtualization regarding the BIOS and they have basically told me to go to Best Buy, never answering the question. Can anyone advise on this? I can still take the laptop back to Best Buy if I need to buy a different one, but I have to admit, the Asus ProArt 16 is a fairly nice machine (except for the fact it can't do the one thing I need it to do, lol)
I am trying to run Cisco Modeling Lab on a PC laptop with Windows Pro 11 using VMware Workstation Pro.
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08-11-2025 04:06 AM
08-11-2025 03:42 AM
08-11-2025 12:46 PM
I had not accessed BIOS/UEFI in that fashion before, but I did so as per the instructions on the link. Per all the doucumentation I have seen, the Virtualization settings should be under Advanced Settings, but there is nothing there. The value is not listed anywhere in the BIOS/UEFI
08-11-2025 03:52 AM
If you're referring to the ASUS ProArt 16 (e.g. StudioBook 16 or similar 16‑inch models) and its support for VMware virtualization—here's what the current specs show:
These are confirmed features in many ASUS ProArt 16 models:
ASUS ProArt StudioBook 16 OLED (e.g. H7600ZM or H7600ZW variants):
Supports Intel VT‑x (with EPT) and Intel VT‑d, enabling full virtualization and directed I/O, both critical for advanced VM setups. (Kelaptop, Micro Center, Quzo UK).
With both VT‑x and VT‑d hardware support:
You should be able to run VMs within VMware and perform operations like PCI device passthrough (e.g. GPU passthrough) when combined with proper BIOS/UEFI and driver support.
For nested virtualization (i.e., running a hypervisor inside a VM on VMware), note that VMware may still refuse to enable VT‑x/EPT—even when available in hardware—due to conflicts like Windows Hyper‑V, Core Isolation, or Virtualization-Based Security (VBS).
Some users have reported VMware errors like "Virtualized Intel VT‑x/EPT is not supported on this platform", which are often due to such software conflicts rather than a lack of hardware capability.
On ASUS systems, Intel virtualization features are typically enabled by default. You can double-check or adjust this by entering BIOS/UEFI during boot (press Del or F2), switching to Advanced Mode, and navigating to Advanced → CPU Configuration to confirm that “Intel (VMX) Virtualization Technology” (including VT‑d) is enabled.
Model / Variant VT‑x (EPT) VT‑d VMware Nested VM (Potential conflicts)
ProArt StudioBook 16 OLED | Yes | Yes | May need BIOS and OS config adjustments |
VMware nested virtualization | — | — | Needs software conflicts disabled |
Enter BIOS/UEFI and ensure virtualization features (VT‑x and VT‑d) are enabled.
In Windows, disable:
Hyper-V features
Virtualization-Based Security (VBS)
Core Isolation / Memory Integrity
Sometimes Windows updates or registry quirks can re-enable them even after being turned off. (Reddit)
Use VMware's VM settings to enable VT‑x/EPT inside the guest.
If you encounter errors about unsupported VT‑x/EPT in VMware—even when BIOS shows it's enabled—check for lingering hypervisor features and reboot after disabling them.
08-11-2025 04:06 AM
08-11-2025 02:29 PM
So I did all of this and the same error. I appreciate the help, but all of this has been tried before. Thank you.
08-11-2025 10:00 AM
im having this same problem with a Dell Pro Max 16 / Microsoft surface laptop 4
08-11-2025 02:32 PM
I empathize with you. Have you tried any of the solutions posted here? I can't believe I've had this much of a problem trying to run this software.
08-14-2025 06:23 AM
I went into the BIOS and disabled SecureBoot (Under Advanced>>Security) tab. When I rebooted, I had to find and type in my 48 Bitlocker key (had to use my phone to retrieve it from my Microsoft acct). I also had to reset my PIN on my laptop. I was able to get the CML free version to run. I think the virtualization issue is still occurring on the 2.7, but I haven't had time to really look into it. Anyway perhaps this is something that you can try to help move you further.
08-11-2025 01:03 PM
This is an issue with Windows 11, which has a security "feature" that prevents 3rd-party hypervisors from supporting nested virtualization by default. Follow the CML procedure for VMware to disable the feature, or switch to Hyper-V.
08-11-2025 02:31 PM
I have tried this and there were some new config changes I had not tried before. I did have some issues with the PowerShell script. I did run it, but I'm not sure exactly what to expect. The issue persists.
08-11-2025 05:47 PM
YMMV, but the CML procedure worked for my installation of CML-Free on WMware Workstation on Windows 11 Pro. The hoped-for result is that the CML installation completes without error and without any alerts being thrown by VWware or CML about VTx support.
If all else fails, you might try CML on Hyper-V, which I have not yet been able to get running, but I expect to try again with CML 2.9.0.
08-12-2025 03:13 AM
Try GNS3. More stable, less issues.
08-12-2025 06:15 AM
Hi @ckeithnc , If you are using Windows PRO, you do not have to go through the hassle of disabling Hyper-V and installing on Workstation. You can directly install CML in Hyper-V manager which is available by default in Windows PRO and Enterprise versions, please find the instructions here, https://github.com/CiscoDevNet/cml-community/blob/master/documentation/cml_on_hyperv.md
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