How To Fix "Not in a hypervisor partition" Error

How do I fix the errors: Not in a hypervisor partition, and AMD-V is disabled in the BIOS - Reddit

Some users prefer to run multiple operating systems on a single computer. That is why manufacturers created VirtualBox, a widely used virtualization tool. However, if you attempt to generate a new virtual machine with VirtualBox on Windows, you may encounter this error: Not in a Hypervisor Partition (HVP=0) (VERR_NEM_NOT_AVAILABLE). We could help you through this! This guide will outline why this error arises and how to fix it effectively.

Part 1. Reasons for "Not in a Hypervisor Partition HVP=0 VERR_NEM_NOT_AVAILABLE"

The "Not in a Hypervisor Partition (HVP=0) (VERR_NEM_NOT_AVAILABLE)" error appears on our screen whenever we attempt to start the virtual machine. In addition to the error message, it also displays the reasons for this error. They are as follows:

1. VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED).

Intel's virtualization technology is called VT-x (also called Intel-VT or IVT). Hardware devices can be virtualized using the virtual machine monitor (VMM) for the virtual machine's operating system. These technologies have previously been implemented by software on VMware and Virtual PC, but hardware support with VT enabled can accelerate the development of such software. "VT-x" is the label given to the 32-bit/64-bit VT extension. Intel processors facilitating virtualization will have a "vmx" flag in the /proc/cpuinfo special file.

This error will show if virtualization is not enabled on your Windows computer. Virtualization must be made available to run a virtual machine because it is typically disabled on many Windows computers at the BIOS level.

Read also: How to fix PC is stuck on the BIOS screen

2. AMD-V is disabled in the BIOS (or by the host OS) (VERR_SVM_DISABLED).

AMD-V (AMD Virtualization) is the name of AMD's virtualization extension for the 64-bit x86 architecture. It is also known as AMD SVM in some BIOS versions. Furthermore, AMD processors that support virtualization will have a flag named "svm" in the special file /proc/cpuinfo.

This error happens because it is disabled in your BIOS settings. Although this option is automatically enabled on most machines, third-party intervention or manual modification may result in it being disabled on your computer. Fortunately, you can re-enable AMD-V. So first, head into your BIOS, and from the CPU Configuration settings, turn on the Secure Virtual Machine mode.

Part 2. How To Fix "Not in a Hypervisor Partition HVP=0 VERR_NEM_NOT_AVAILABLE"

Virtualization technology requires support from processors, chipsets, and BIOS. When you see the error "Not in a Hypervisor Partition (HVP=0) (VERR_NEM_NOT_AVAILABLE)," it means that virtualization is disabled in your computer's BIOS and you must enable it before you can create a new virtual machine.

You can follow the steps below, or if you cannot follow through with reading, here is a video tutorial to fix this error.

Here's how to enable virtualization technology (VT-x or AMD-V) in BIOS:

Step 1. Restart your laptop or desktop computer. Then, press the BIOS key when the boot screen appears to enter BIOS mode.

Step 2. Use the arrow keys to navigate the Configuration tab in the BIOS interface, where you can find the virtualization.

Step 3. Once you've located the virtualization item (IVT, AMD-V, or something related to virtualization), press Enter to confirm that it is enabled.

Step 4. Click F10 to save your changes and exit BIOS.

After enabling Virtualization in BIOS, restart your computer to restart the virtual machine in VirtualBox. You will open this VM smoothly this time.

Conclusion

That's it! This post reveals the steps on how to resolve the error "Not in a Hypervisor Partition (HVP=0) (VERR_NEM_NOT_AVAILABLE)." It may appear complicated at first, but once you understand the reasons and have read the steps mentioned above, you can follow this through.