I will recommend you How to fix AMD-V is disabled error in BIOS in VirtualBox
When a virtual machine is started in VirtualBox, the error “AMD-V is disabled in BIOS (VERR_SVM_DISABLED)” usually indicates that the virtual machine is trying to start. This happens because the AMD-V feature, which supports virtualization on AMD CPUs, is disabled in the system BIOS or by the host operating system. The main reason is that hardware virtualization is not enabled in the BIOS, which is required to run 64-bit virtual machines or use multiple CPU cores in a virtual machine.How to fix AMD-V is disabled error in BIOS in VirtualBox
When a virtual machine is started in VirtualBox, the error “AMD-V is disabled in BIOS (VERR_SVM_DISABLED)” usually indicates that the virtual machine is trying to start. This happens because the AMD-V feature, which supports virtualization on AMD CPUs, is disabled in the system BIOS or by the host operating system. The main reason is that hardware virtualization is not enabled in the BIOS, which is required to run 64-bit virtual machines or use multiple CPU cores in a virtual machine.
Other possible reasons include system updates that alter BIOS settings or conflicting software settings, such as enabling Hyper-V in Windows.
In this article, we will discuss solutions to this problem.
1. Enable AMD-V in BIOS Settings
Enabling AMD-V in your BIOS activates the built-in virtualization features of your CPU. This is important because VirtualBox needs these features to efficiently run 64-bit operating systems and manage workloads using multiple CPU cores. If AMD-V is not enabled, you may have issues when trying to configure or run virtual machines that require these capabilities.
However, the process for accessing the BIOS varies depending on the motherboard manufacturer. During initial startup, press the Setup key, usually one of the F keys (F2, F4, F8, F10, F12) or the Del key (for Dell machines). If you cannot find the Setup key, look for a message during the boot sequence or look for instructions specific to your motherboard brand.
Press the BIOS key during the boot procedure After entering the BIOS, locate the Secure Virtual Machine Mode entry and ensure that it is set to Enabled. This option is usually found under Advanced > CPU Configuration. Save your changes and exit the BIOS.
Make sure that Secure Virtual Machine Mode is enabled Note: The precise location of this option may vary depending on your motherboard model. If you can't find Secure Virtual Machine Mode, search for AMD IOMMU and change it to Enabled within the AMD I/O Virtualization Technology menu for users with Acer motherboards.
Remember that a simple reboot will not apply the change; a cold boot is required. Completely shut down your machine and allow it to boot from the beginning.
After rebooting, open the previously affected virtual machine within VM VirtualBox to check if the error has been resolved.
2. Disable Windows Hyper-V
Hyper-V, a virtualization tool in Windows, can prevent other programs such as VirtualBox from accessing hardware virtualization, causing the AMD-V error. Disabling Hyper-V allows VirtualBox to use your system's virtualization features, which is important for running 64-bit virtual machines.
- Press Windows + R, type “appwiz.cpl” and press Enter.
- Click Turn Windows features on or off. Under Programs and Features, click Turn Windows features on or off.
- In the Windows Features window, find the Hyper-V entry and make sure the box next to it is unchecked. Click OK to confirm the changes. Uncheck the box associated with Hyper-V.
- Restart your computer and check if the error has been fixed at the next startup.
3. Change the number of CPU cores to 1.
By reducing the number of virtual CPU cores to 1, you can avoid the need for AMD-V, which is required to use multiple cores in VirtualBox. Even without hardware virtualization, VirtualBox can run a virtual machine with only one core.
- Open Oracle VM VirtualBox, right-click on the malfunctioning machine, and select Settings.
- In your virtual machine's Settings, navigate to the System tab in the left menu, then to the Processor tab. Drag the Processor(s) slider down to 1 CPU and click OK to save the change.
- Close the settings menu and restart your virtual machine, which should now start without displaying the error.
4. Change the version to Windows 7 or Windows 2003 (if applicable)
When you set the version to Windows 7 or Windows 2003 in VirtualBox, you adjust the virtual machine to work without the need for advanced features such as hardware virtualization (AMD-V). These older operating systems are less demanding on the system and do not rely heavily on AMD-V, which may be disabled in your BIOS.
- Launch VM VirtualBox and right-click on the machine affected by the error, then choose Settings. Right-click on the affected machine and click Settings.
- In the Settings menu, access the General submenu, then the Basic tab. Change the Version using the drop-down menu toWhen a virtual machine is started in VirtualBox, the error “AMD-V is disabled in BIOS (VERR_SVM_DISABLED)” usually indicates that the virtual machine is trying to start.
- This happens because the AMD-V feature, which supports virtualization on AMD CPUs, is disabled in the system BIOS or by the host operating system. The main reason is that hardware virtualization is not enabled in the BIOS, which is required to run 64-bit virtual machines or use multiple CPU cores in a virtual machine.
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