topic Re: Run into"Virtualized Intel VT-x/EPT is not supported on this in Communities of Interest

Run into"Virtualized Intel VT-x/EPT is not supported on this platform"

wgebe — Tue, 30 Nov 2021 10:09:45 GMT

I Unfortunately, CML2 no longer works. At least I again encounter the message "Virtualized Intel VT-x/EPT is not supported on this platform". I had it running in its entirety last week by turning off hyper-v and WSL.

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

Martin L — Tue, 30 Nov 2021 23:20:19 GMT

check Bios settings, check vm ware or vm player settings. you can enable "Virtualized Intel VT-x/EPT" in both places bios and vm ware settings. Bios must have it enabled before u can check vmware settings.

if that does not work, go to Cisco learning network and post your message in CML sub-forum.

Regards, ML
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Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

hayroi95 — Thu, 10 Mar 2022 10:12:58 GMT

Last time, we faced this issue after installing the Docker Desktop software which is a virtualization software.

Solution: Turn off Virtual Machine Platform and Hyper-V.

Note that if there is a software causes this error, such as Docker Desktop that software might not work because it relies on the above settings.

Tutorial source if you don't know how to turn them off: https://mayviti.com/vmware-virtualized-intel-vt-xept-is-not-supported-pc-fixed/

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

wfields52 — Mon, 24 Oct 2022 14:25:48 GMT

I have tried the above, turning off "Virtual Machine Platform and Hyper-V", but still have the error "Virtualized Intel VT-x/EPT is not supported on this platform, etc."
I have no idea how to proceed to actually get the CML to work.
Thanks for any help.

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

Louey — Fri, 28 Oct 2022 20:03:54 GMT

I have exactly the same issue, I have disabled hyper-V, DeviceGuard, credentialGuard, VBS...but nothing works.

The only ooly solution for the moment is to change the host..if any other solution I would take with pleasure.

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

wfields52 — Sat, 29 Oct 2022 14:28:36 GMT

I finally found a solution that works for me on the VMware site:
https://kb.vmware.com/s/article/2146361
I followed these steps:

"....

Steps to Disable Hyper-V:

Note:
It is recommended to take back up of your data and have system restore points as a safety measure. The following features would not work anymore once the Hyper-V is disabled

Credential Guard/Device Guard
Windows Sandbox
Virtual machine platform
WSL2
Hyper-V

Verify Virtualization-based Security (VBS) is Enabled/Not Enabled:

1. Open msinfo32/system information on Windows 10

2. Under System Summary on the Right-hand page, scroll down to Virtualization-based Security and
ensure the Value is set to Not enabled.

3. If the value is set to enabled follow the steps given below according to disable Hyper-V.

1. Turn Off Hyper-V

Go to "Turn Windows features on or off"
Make sure Hyper-v is not ticked.
If it is Ticked, untick it and click "Ok".

2. Open command prompt window as an administrator

Run “bcdedit /enum {current}”
Note down the hypervisorlaunchtype in case this needs to be reverted
Run “bcdedit /set hypervisorlaunchtype off” to disable hypervisor Close the command prompt after executing the commands and restart the system.

We should be able to power on the Virtual Machine in Workstation now."

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

Louey — Sat, 29 Oct 2022 17:29:35 GMT

I did all this (hyper-v, vbs, credential-guard disabled) but still stuck on this issue from last summer.

The problem is that it was working on the same host before, when just after uninstalling workstation pro (free trial) and re-using workstation player this issue occured !

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

Louey — Sat, 29 Oct 2022 18:19:24 GMT

Finaly found a solution !! I did not have the value "LsaCfgFlags" in my regisrty key, so I had to create it after disabling Hyper-V and VBS and credential guard : follow this https://kb.vmware.com/s/article/2146361

Run “bcdedit /set hypervisorlaunchtype off” to disable hypervisor Close the command prompt after executing the commands and restart the system.
Process to turn off virtualization-based Security:
Below steps can be followed to turn off virtualization-based Security for Windows 10 Home & Pro:
For Microsoft Windows 10 Pro & above:
Edit group policy (gpedit)
Go to Local Computer Policy > Computer Configuration > Administrative Templates > System
Double Click on Device Guard on the right hand side to open.
Double Click on "Turn On Virtualization Security" to open a new window
It would be "Not Configured", Select "Disable" and click "Ok"
Close the Group Policy Editor.
Restart the system
3.For Microsoft Windows 10 Home:
Note: This procedure modifies the Windows registry. Before making any registry modifications, ensure that you have a current and valid backup of the registry and the virtual machine. For more information on backing up and restoring the registry, see the Microsoft Knowledge Base article 256986.
Open Registry Editor
Go to HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > DeviceGuard
On the right-hand side, write a new key
1. a. Right Click > New > DWORD (32-bit) Value
b. Name this Value "EnableVirtualizationBasedSecurity"
By default, it should be 0, Double click, and confirm the value
4. Go to HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Lsa
5. On the right-hand side, write a new key
a. Right Click > New > DWORD (32-bit) Value
b. Name this Value "LsaCfgFlags"

By default, it should be 0, Double click, and confirm the value

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

KumarT — Thu, 10 Nov 2022 03:21:20 GMT

Works like a charm, thanks!

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

lauhakming — Fri, 24 Mar 2023 08:55:57 GMT

I have ran into this problem too and wondering if the CPU compatibility is the issue and then resolve this by stopping Hyper-V etc by searching for information like those mentioned in kb link. I have drafted the my experience of installation in below link.

https://www.pjforce.com/company/56/49/view

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

omarefren — Fri, 28 Jun 2024 18:30:32 GMT

I did all these steps but still have the same problem. I'm using W11.

I already posted my problem in the Forum but nobody has been able to figure it out so far.

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

Ramblin Tech — Fri, 28 Jun 2024 20:14:02 GMT

What hypervisor are you using for the installation of the CML VM?

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

bigevilbeard — Sun, 30 Jun 2024 16:37:16 GMT

@omarefren Suggest to contact the CML team at Cisco if you are stuck with this issue.

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

Martin L — Sun, 30 Jun 2024 20:54:45 GMT

Also check CLN community CML forums at

https://learningnetwork.cisco.com/s/communities

find CML sub-forum ; in case of CML urgency, add post/reply and mention Karlo (using @ symbol )

Regards, ML
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Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

omarefren — Tue, 09 Jul 2024 17:37:29 GMT

I've tried various VMWare Workstation Player versions and VMWare Workstation PRO. Same bad results every time.

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

Ramblin Tech — Tue, 09 Jul 2024 18:02:37 GMT

Similarly frustrating post on Learning Network CML support forum, with some suggestions:

https://learningnetwork.cisco.com/s/question/0D56e0000DzEQmxCQG/after-making-all-the-recommended-changes-to-the-os-in-registry-and-power-shell-command-shell-i-am-still-getting-the-virtualized-intel-vtxept-is-not-supported-on-this-platform-both-vmware-player-and-vmware-workstation-pro-win-10-or-11

Also, since you are an employee, have you tried the internal Team Space for VIRL/CML and the internal VIRL site for further suggestions? CML DE and CX folks used to lurk there in years past.

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

omarefren — Tue, 09 Jul 2024 18:06:49 GMT

Hi there!

I went to your website but unfortunately, the 2 links you included that helped you fix this issue no longer work, and I could not find them in the Broadcom/VMWare communities.

You mentioned that one of the key items was "the group policy feature" change you did. Could you please elaborate on what you did for this?

I already disabled DeviceGuard from the Local Computer Policy(Registry Editor). I also disabled VBS from GPedit). Is that what you meant?

Thank you in advance!

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

infinitynzero — Mon, 09 Dec 2024 22:44:09 GMT

I ran into this issue with two separate gaming PC's that I picked up because I wanted a local machine to use for my labs, but one with enough cores and RAM to run decent labs. I believed it had been an issue with BIOs or the motherboard of one of the systems, and then I thought it was Windows Features per the advice of literally everyone... I found that if you have 'Hyper-V' and 'Virtual Machine Platform' turned OFF in Windows Features, then you need to check your security settings. Go into 'Windows Security > Core Isolation > Memory Integrity' and set this option to 'OFF'. That is the ONLY thing that has allowed me to run CML2 in Workstation 17 Pro.

Re: Run into"Virtualized Intel VT-x/EPT is not supported on this

raulpale21 — Tue, 10 Jun 2025 06:28:24 GMT

This solve my problem in windows 11 home, thank you so much.