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

[jaller79work]

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

[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-g... then reboot your System .Good luck

[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.

[BhanuWriter]

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]

have you enabled VT-x in bios?

[Thomas84]

Yes, sure.