Windows 10: I cannot enable the nested VT-x/AMD-V to both VMWare Workstation and Virtualbox using...

I cannot enable the nested virtualization VT-x/AMD-V to both VMWare Workstation and Virtualbox already in latest versions using my Windows 11 Pro. Virtualization is already enabled in BIOS. To troubleshoot, I already disabled the following:1. Windows Features: - Hyper-V - Virtual Machine Platform - Windows Hypervisor Platform2. Core Isolation > Memory integrity3. Credential Guard > Virtualization Based Security from Not configured to DisabledCan you share me how to fix this please.

:)

 

Disabling Memory Integrity is causing windows 11 to BSOD while Powering on Vmware workstation host

Looking into this again and it may get too complicated. So am trying to simplify it lol.

Supposedly with VMware as I expected Hyper-V looks like it needs to be disabled here (but only because of nesting): How To Enable Nested Virtualization (VT-x) On Hyper-V, VMWare, VirtualBox VMs In Windows

That goes with some other things I've seen around.

Getting Hyper-V disabled so Intel VT-x/EPT or AMD-V/RVI enabled in VMware and using virtualization has some effort. The virtualization stuff in the BIOS is also important there.

I made these notes on that when I did it recently in Windows 11:

This is a good link here: https://www.makeuseof.com/windows-11-disable-hyper-v/

Got it working after another reboot though and not necessarily from that link.

eg...

made sure hyper-v wasn't installed in Windows Settings > Apps > optional features bcdedit /set hypervisorlaunchtype off (did previously before link)

tried powershell command and failed

checked for device manager hyper-v network items and nothing found

Windows security memory integrity has been off

nothing changed there on that try and rebooted to success

system information no longer shows the message a hypervisor has been detected.

task manager cpu shows virtualization enabled

If you keep having trouble though you could also ask at Home - Broadcom Community - Discussion Forums, Technical Docs, Ideas and Blogs and see what those there suggest.

The only other thing I will note is what you wrote Intel VT-x/EPT or AMD-V/RVI cannot be used with Hyper-V is enabled:

eg "VMware Workstation/Player can now run when Hyper-V is enabled. You no longer have to choose between running VMware Workstation and Windows features like WSL, Device Guard and Credential Guard. When Hyper-V is enabled, ULM mode will automatically be used so you can run VMware Workstation normally. If you don’t use Hyper-V at all, VMware Workstation is smart enough to detect this and the VMM will be used." https://blogs.vmware.com/workstation/2020/05/vmware-workstation-now-supports-hyper-v-mode.html

There's a stronger worded link to that effect as well.

Supposedly too, VMware has a log you can look at to somewhat diagnose issues. Such as ULM in that quote has a meaning and can be determined in the log. And so on.

Ah that's simple version? lol.

Hope the best

 

VT x is not available in BIOS

Hi,

I am working on Intel Pentium Dual Core T4500, having windows 10 OS. I am trying to run a Windows 7 virtual machine using VMware workstation player 12 but it shows Intel VT-x is disabled in BIOS, but in BIOS I don't see this option
at all. I have searched on intel site that this particular model T4500 doesn't support VT-x. Is there any turn around. If I use Virtualbox will that solve my problem.

Please suggest.

Thanks.

 

VirtualBox is saying that VT-x is not available, but it is?

So this is my first thread on this site! :3 Nice to meet you all. I'm a Linux user who's started to come back to Windows to learn more about it (I need to, if I truly call myself a Geek). So, a bit of context. VirtualBox works just fine under Linux (Ubuntu), with VT-x, Nested Paging and everything working just fine. But under Windows, despite having VT-x enabled in the UEFI, I still can't seem to get my VMs up and running. :\ VirtualBox complains about VT-x not being available, thought it's enabled in the UEFI on this HP EliteBook 8470p... I checked Hyper-V in the features and settings Program (I'm using Windows 10 Pro with a Windows 7 Pro License linked to my Microsoft Account, which surprisingly worked). But alas, to no avail. :\ What am I missing here? Is it something deep in the Windows Registry, or is it some more general setting? Before I enabled Hyper-V, it didn't work either. Currently, I'm under Ubuntu (yes, I like Ubuntu despite all the other Distros I've used. *Wink) VirtualBox is also the latest stable version, version 6... I also like Windows 10 and WSL with Debian, so I can Compile Programs without having to octa-boot between Operating Systems. Well, this is my first post. It's very nice to meet you all. *Biggrin I'll reboot into Windows 10 now, so I can further provide any info. Thanks for any suggestions and help! *Wink