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20

What solved my issue was using less than 3 GB of ram in the virtual box session. I was originally attempting to utilize roughly 6 GB. You are trying to allocate >3GB of RAM to the VM. This requires: (a) a 64 bit host system; and (b) true hardware pass-through ie VT-x.


5

On page 2916 of this Intel software developer's manual, you can see that a hardware "hook" is provided that can allow a BIOS to disable or enable virtualization. VMXON is also controlled by the IA32_FEATURE_CONTROL MSR (MSR address 3AH). This MSR is cleared to zero when a logical processor is reset. ... Bit 0 is the lock bit. If this bit is clear, ...


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Reducing RAM in VirtualBox from 4gb to 2gb worked for us when we had only RDP to host machine so couldn't access BIOS.


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This is not a duplicated question. What OP is trying to do is something like this: Host A(with VT-X support)->virtual machine B-->some applications need VT-X and getting VT-X support inside B so applications -- may be another VM or emulator -- running inside B, can take advantage of vt-x. Its called "Nested Hardware Virtualization", supported by ...


1

I had a similar issue. VT-x features locked or unavailable in MSR. VERR_VMX_MSR_LOCKED_OR_DISABLED. I run the VMBox for years and not this... I checked all the Forums and nothing helped me, than I realised there was an update of my antivirus software. So problem came from the new AVAST antivirus software. In AVAST Options-> Troubleshooting->Disable Hardware ...


1

I had the same issue with an i7-4790 CPU and an ASRock Z97 Extreme6 motherboard. My BIOS reported that VT-x was enabled, however the Intel Processor Identification Utility showed that it was disabled. Turned out to be the Hypervisor conflicting with the Intel tool. Using bcdedit to prevent the hypervisor from automatically starting allowed the Intel tool to ...


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Intel Virtualization Technology (VT). Formerly known as Vanderpool, this technology enables a CPU to act as if you have several independent computers, in order to enable several operating systems to run at the same time on the same machine. In this tutorial we will explain everything you need to know about this technology. Intel’s virtualization technology ...


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I don't believe that you can run Hyper-V within a guest as there is already a hypervisor running. (Pretty sure it tells you this if you try and install the hyper-v role). I think your just going to have to run these other machines on the host server.


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Open Avast, go to -> Settings -> Troubleshooting -> "Enable hardware-assisted virtualization", and uncheck Avast's "Enable hardware-assisted virtualization". Source: https://forum.avast.com/index.php?topic=162445.0


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Actually sometimes vendors of motherboards (mostly notebook ones - a 2430M seems to be a notebook processor, so I can assume that you have a notebook) lock this option - hide it from the BIOS menu. There could be three ways to enable it - first one there MAY be an utility from the notebook or motherboard vendor which could enable or disable it. Second one - ...


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Just ran this on my box at home and I can confirm the latest version of CPU-Z directly from the website works correctly on Windows 10. It detected that my CPU supported VT-x and listed it in the instructions section. Without checking if you have VT-x enabled in the BIOS, everything is probably just guessing.


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There's nothing surprising about this. Windows 10 is using the virtualization feature of the CPU, as it says it is. CPU-Z is therefore running on a virtual CPU which does not itself support virtualization. Before, your OS wasn't using the virtualization feature of the CPU. So that left it available for programs like CPU-Z to detect and use. Unless nested ...



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