What to do when verr_nem_not_available error in VirtualBox happens? Read the article to learn more about the troubleshooting of the issue. At Bobcares, with our Virtualizor Support, we can handle your issues.

Overview

1. Fixing “verr_nem_not_available” error in VirtualBox
2. Causes & Fixes of the Error
3. Benefits of Fixing the Error
4. Conclusion

Fixing “verr_nem_not_available” error in VirtualBox

VirtualBox is a free and open-source virtualization software that allows us to run multiple operating systems on the computer simultaneously. It also creates virtual machines (VMs) where we can install as well as use different operating systems without affecting the main system. The key features are the following:

i. Cross-platform: It runs on Windows, macOS, Linux, and Solaris.

ii. Multiple OS Support: It can run a variety of guest operating systems (Windows, Linux, macOS, etc.).

iii. Snapshots: Save the state of a VM and revert to it if needed.

iv. Shared Folders: Share files between the host and guest systems.

v. USB Device Support: It connect USB devices to the guest system.

vi. Networking: Multiple networking modes, including NAT, bridged, as well as host-only networking for VMs.

v. Seamless Mode: Integrates guest windows into the host OS, allowing smoother use of VMs.

The Error Code: VERR_NEM_NOT_AVAILABLE in VirtualBox suggets that the necessary hardware virtualization support is not available or not properly configured on the system.

VirtualBox cannot access hardware virtualization features (such as AMD-V or Intel VT-x) because another software or service is already using them, according to the VirtualBox error VERR_NEM_NOT_AVAILABLE. Because specific system parts or third-party apps have the ability to lock certain virtualization extensions, this problem usually occurs on Windows computers, particularly with more recent versions.

Causes & Fixes of the Error

1. Cause: Hyper-V can conflict with VirtualBox.

Fix: Initially, we must disable Hyper-V via BIOS and Windows settings. Also, check Hyper-V services and ensure they are stopped using PowerShell. The steps are as follows:

Disable Hyper-V:

i. Firstly, shut down all running programs

ii. Restart the host machine

iii. Then, press F10 repeatedly during boot to enter the BIOS settings

iv. Now, go to the “Main Security System Configuration” and toggle to “System Configuration”

v. Also, select “Virtualization Technology” and enable it

vi. Now, save changes and exit the BIOS settings

vii. Lastly, restart the host machine again

Verify Hyper-V is disabled by checking the status of the Hyper-V services:

i. So, open the Run dialog (Windows key + R) and type services.msc

ii. Look for all services beginning with “Hyper-V” and also ensure they are stopped

2. Cause: VT-x is disabled in BIOS.

Fix: Enter BIOS settings, enable “Virtualization Technology” or “Intel VT-x,” and then, save changes. The steps are as follows:

i. Restart the system.

ii. Press the appropriate key to enter the BIOS settings, which varies by manufacturer.

iii. Once in the BIOS settings, navigate to the “Advanced” or “Performance” tab.

iv. Locate the “Virtualization Technology” or “Intel Virtualization Technology” option.

v. Enable it by selecting “Enabled” from the drop-down menu.

vi. Save the changes and then, exit the BIOS settings by pressing F10 or the “Exit” button.

3. Cause: Not enough RAM for VirtualBox and VMs.

Fix: Increase host RAM or adjust VM RAM allocation. Also, close other resource-intensive applications.

4. Cause: Incompatible VirtualBox version.

Fix: We must also try using a compatible VirtualBox version.

5. Cause: Incorrect BIOS settings.

Fix: Enable SVM (Secure Virtual Machine) in BIOS settings. The steps are the following:

i. Firstly, restart the host machine and enter the BIOS settings during boot by pressing the appropriate key (usually F2, F10, or F12).

ii. Then, go to the “Security” or “Advanced” tab in the BIOS.

iii. Then, look for an option related to “Virtualization Technology,” “SVM,” and enable it.

iv. Also, save the changes and exit the BIOS settings.

v. Lastly, restart the host machine

6. Cause: Incorrect system setup.

Fix: So, ensure virtualization technology is enabled in BIOS.

7. Cause: Improper VirtualBox installation.

Fix: Uninstall, clean up, and reinstall VirtualBox. We can follow these steps:

• Shut Down All Programs

• Uninstall VirtualBox

• Remove Leftover Folders

• Clean Up Windows Registry

• Reinstall VirtualBox

• Reset VirtualBox Settings

Benefits of Fixing the Error

By fixing the VERR_NEM_NOT_AVAILABLE error in VirtualBox provides, we get many benefits such as:

1. When the problem is fixed, VirtualBox may use hardware virtualization capabilities, hence increasing virtual machine performance and efficiency.

2. Fixing this mistake makes the environment more reliable as well as consistent by resolving compatibility problems with other virtualization applications or system setups.

3. Improves the efficiency with which VirtualBox uses system resources, avoiding resource contention and also guaranteeing improved performance for both host and guest systems.

4. Resolving the problem also ensures that virtual machines operate without hiccups or crashes brought on by virtualization conflicts.

5. Supports proper operation of the development and testing environments in VirtualBox. This is also very essential for developers and testers who depend on virtualized environments.

6. Resolving the issue reduces interruptions and downtime, hence, resulting in more dependable and consistent utilization of virtual machines.

7. A safe environment may be maintained by properly configuring virtualization settings, which guard against misuse as well as illegal access to virtualized resources.

Resolving this issue makes VirtualBox easier in order to use overall by ensuring safe, effective, and consistent virtualization.

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Conclusion

To sum up, resolving the VERR_NEM_NOT_AVAILABLE error in VirtualBox is crucial for ensuring optimal performance and also stability of the virtual machines. By addressing this error with the above steps from our Support team, we can easily enable VirtualBox in order to use hardware virtualization features effectively, leading to improved VM performance, reliable operations, and better resource management.

Fixing this issue also enhances system compatibility, reduces downtime, as well as supports secure and efficient development and testing environments. Overall, a successful resolution of this error ensures a smoother and also more dependable virtualized experience.