Virtualized Intel VT-x/EPT Error

[TS02]

Hi there.

 

I wondered if someone could help me.

 

I am trying to create a CentOS VM using VMware Workstation 16 Player, but when I try to power on the VM, I get an error message - 'Attached'

 

'Virtualized Intel VT-x/EPT is not supported on this platform. Continue without virtualized Intel VT-x/EPT'

If possible, please could you help me as this VM was working perfectly fine a few months ago.

 

Kind Regards,

 

Tamoor

 

 

[ender_]

If you're not planning to run nested VMs (VMs inside your VMWare VM), just disable the "Virtualize Intel VT-x/EPT or AMD-V/RVI" checkbox in VM Settings→CPU, and the message will go away; if you do plan to run nested VMs, you will have to disable Hyper-V on the host.

[TS02]

Hi ender_,

I received this message too. Is this because I have Hyper V enabled?

Also, I was reading some info online and apparently VMware and Microsoft worked together in order to allow users to use VMware Workstation Player when Hyper-V was enabled.

Surely, I shouldn't be having these issues since I am using both: VMware Workstation 16 Player and am running Windows 10 20H2.

Link to Blog -> https://blogs.vmware.com/workstation/2020/05/vmware-workstation-now-supports-hyper-v-mode.html

Regards,

Tamoor

[ender_]

Which Windows version do you have? VMWare supports Hyper-V API on Windows 10 2004 and newer only.

[TS02]

I am using Windows 10 Pro

[ender_]

There are currently 11 major versions of Windows 10 Pro (3 of which are supported) - right-click the Start button, select Run from the menu and run winver, that will tell you the exact version you're running.

The part in red is your Windows 10 version - if it's 1909 or older, VMWare won't work if Hyper-V is enabled.

[TS02]

Hi ender_,

This is the current version that my system is running.

 

[ender_]

OK, this is new enough to support Hyper-V. I missed nested virtualization part of the error in your first image - disable that in the VM settings, and it should work.

[TS02]

But, I am intending to use 3 other VM's within my main VM. So I can't do that.

[ender_]

If you want to do nested virtualization, you will have to disable Hyper-V on the host - follow the link in my first message. Hyper-V API currently doesn't support nested virt, so you can have one or the other.

[TS02]

I see. I'll follow the steps you gave earlier tomorrow morning and let you know how I get on.

Thanks for the help so far ender_

[TS02]

Hi ender_,

Sorry for no updates. I followed the instructions you sent and my VM seems to be working okay. If anything goes wrong I'll be sure to post something on the community page.

Thank you once again.

Take care and Happy New Year!

[jmjohnson85]

Just want to add that for me running this command:

bcdedit /set hypervisorlaunchtype off

resolved the nested virtualization issue for me (required a reboot to take affect though). Of course I can no longer use WSL2/Docker/etc.. on the host machine until I revert the setting back to 'auto'.

[iraklis88]

Many thanks, this worked for me!

[vassallod]

This command followed by a reboot of the workstation worked for me.

[sameer sayyad]

Hello i try all methods but still i am facing this issue 

Virtualized Intel VT-x/EPT Error

laptop lenovo 

[hunk1989]

Please check my tutorial to resolve this issue which i have in this page

 

https://communities.vmware.com/t5/Nested-Virtualization/Virtualization-Intel-VT-xEPT-it-not-supported-on-this-plataform/m-p/2284582/highlight/false#M2608

[Vishal32]

Hi , I tried with all possible options. Nothing worked. 

[hmtm]

You may try the solution https://github.com/paolo-projects/auto-unlocker/issues/31

It's worked for me in Windows 10 Home edition

[jiranda]

This might be due to a Windows virtual machine configuration that you mistakenly set or a software you installed changes it. Don’t waste your time into install a new virtual machine or reconfigure your VMWare machine because the last time you still started it successfully and it may cause the problem go further and other problems may arise.

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

Try solution below:

https://mayviti.com/vmware-virtualized-intel-vt-xept-is-not-supported-pc-fixed/

[louey11]

Hello

I didnt have this issue before uninstalling Vmware workstation pro and reinstall it again.

Now, I disabled Hyper-V on Windows 10 and still have the same issue.

Any solution for that ?

Kind regards

[mchnwm872]

with Hyper-V enabled or Virtual Machine Platform ,or Windows Hypervisor Platform, can't use Vmware warstation or player, with or without Vt-X enable, inside your Vm ,need to disable all this features before and then reboot your system.to test it just download Intel processor identification utility for example and when you launch it can verify that this features Vt-X and EPT are disabled by Microsoft when you enable hyper-v or Virtual machine platform just to use WSL , or Docker-Desktop.and like side effect can note side channel mitigation enabled by Microsoft to prevent processor vulnerability that can slow down a lot yours VMs.So only solution , happen to me just with VMP, just to try WSL,version 1,to be able to use again Vmware like before i disabled virtual Machine Platform and reboot.do it manually or throw powershell is the same .Open setting , add optional features , more windows features, and untick hyper-v management tools ,Hyper-v platform, virtual machine Platform ,and Windows Hypervisor platform if enabled.then reboot or open like admin windows terminal, right click on start and Windows Terminal (Admin) in windows 11 . and type in powershell :Disable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V-Hypervisor and look this if you are enabled credential guard by windows defender: https://docs.microsoft.com/en-us/windows/security/identity-,protection/credential-guard/credential-guard-manageand then reboot your System .Good luck

[jaller79work]

I turned off virtaulisation setting in windows 11 features and then unticked Virtualize intel VT-X ... in Vm settings Processors - all ok now

[superjac]

Thank you for this! This worked for me!

• Windows 10 21H2
• VMWare Workstation 16 Player

Turning off Hyper-V windows feature and running the command below on PowerShell as an Admin:

 bcdedit /set hypervisorlaunchtype off 

After reboot and launching Virtual Machine, no more errors were found.

[Bhanu Naik]

https://bhanuwriter.com/virtualized-amd-v-rvi-is-disabled/

Try the above link it will work.

[mehrn]

Hello

 

I have this problem. I'm using VMware.Workstation.Pro.16.2.4. and windows 11. My hyper-v, windows hypervisor platform and virtual machine platform were unchecked. I tried many times and run hyper-v disable command. 

I would like to run nested virtualization so I need Virtualized Intel VT-x/EPT or AMD-v/RVI feature.

My cpu is ryzen 7and my laptop is lenovo.

 

It would be great if you could give me a solution.

Thank you!

[louey11]

Hi

I resolved this issue on my host by creating a new registry key value "Lsa", I have been strugling since last summer.

Find out the solution : https://kb.vmware.com/s/article/2146361

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

1. Run “bcdedit /set hypervisorlaunchtype off” to disable hypervisor Close the command prompt after executing the commands and restart the system.

2. 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
3. b. Name this Value "EnableVirtualizationBasedSecurity"
4. By default, it should be 0, Double click, and confirm the value
5. 4. Go to HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Lsa
6. 5. On the right-hand side, write a new key
7. a. Right Click > New > DWORD (32-bit) Value
8. b. Name this Value "LsaCfgFlags"

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

[Thomas84]

For me this error started in VMware Workstation Pro 16.2.4, when i installed the "Windows Subsystem for Android" (WSA) to be able to run Android-Apps inside Windows 11. - After installation of WSA i get this "Intel VT-x" error message inside VMWare Workstation. - I guess this is because WSA enables Hyper-V, which disables Intel-VTx for vmware Workstation !? -. Would be nice if there is a way to be able to use both: Windows 11 WSA and vmware Workstation with Intel VT-x on the same machine.

[Sofoniyas Teklegiorgis]

have you enabled VT-x in bios?

[Thomas84]

Yes, sure.