VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available

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VirtualBox is being actively developed with frequent releases and has an ever growing list of features, supported guest operating systems and platforms it runs on. VirtualBox is a community effort backed by a dedicated company: everyone is encouraged to contribute while Oracle ensures the product always meets professional quality criteria.

Several VirtualBox users are encountering the “Virtual machine has terminated unexpectedly during startup with exit code 1 (0x1)” error whenever they try to open a virtual machine. Affected users report that this error occurs with multiple virtual machines (including any new ones that they try to create). This particular issue is confirmed to occur on Windows 7, Windows 8.1 and Windows 10.

What is causing the “Virtual machine has terminated unexpectedly during startup with exit code 1 (0x1)” error

• The VirtualBox kernel driver is not installed (or is corrupted) – A couple of users have managed to get the issue resolved by reinstalling VirtualBox along with the VirtualBox kernel driver.
• 3rd-party antivirus is interfering with VirtualBox – In a couple of reports, affected users were able to get the issue resolved by temporarily disabling the real-time protection of their 3rd party AV.
• A bad Windows Update is causing the error – There’s one particular update that is confirmed to be causing this particular error. So far, this issue is only confirmed to occur on Windows 7.

If you’re currently struggling to resolve this particular issue, one of the methods below will enable you to resolve the issue. Below you have several fixes that other users in a similar situation have used to ge

t the issue resolved.

Since the methods below are ordered by efficiency and severity, follow them in the order that they are presented until you find a fix that successfully resolves the issue in your particular scenario.

Solution 1. Discard Saved State.

If you have closed the Virtual Machine abnormally and you have chosen to save the machine’s state, then maybe the VM’s state is corrupted. So, proceed and delete the saved state and then see if the “Failed to open session for Virtual Machine” has resolved. To do that:

1. Right click on the Virtual Machine and select Discard Saved State.

2. Then try to start the virtual machine. If the problem persists, continue to the next method below.

Solution 2. Uninstall and Re-Install VirtualBox.

The next method to solve the most common method to solve the “Failed to open a session for the virtual machine” problem in VirtualBox, is to uninstall and then to reinstall the VirtualBox application, especially if the problem appeared after a Windows Update.

1. Go to Control Panel & Uninstall VirtualBox. (Don’t worry, the VMs will stay untouched).
2. Reboot your computer.
3. Download latest version of virtual box
4. Right click on the downloaded file and click “Run As Administrator”.
5. Follow the on screen prompts to install VirtualBox.

6. After installation, reboot your computer.
7. Open VirtualBox manager and start your Virtual Machine.
8. If the Virtual Machine opens fine, then proceed to install the Guest Additions and the

That’s it! Let me know if this guide has helped you by leaving your comment about your experience. Please like and share this guide to help others.

Solution 3: Restarting your system

If you haven’t already done this, start simply by rebooting your machine. Several users have reported that after they rebooted their computer, VirtualBox was able to open virtual machines without being interrupted by the “Virtual machine has terminated unexpectedly during startup with exit code 1 (0x1)” error.

If a restart is not effective or you’re looking for a more permanent fix, move down to the next method below.

Solution 4: Disable the antivirus while running the virtual machine

Another frequent culprit that will trigger the “Virtual machine has terminated unexpectedly during startup with exit code 1 (0x1)” error is an external antivirus suite ( a security option different than Windows Defender).

Several users that were using a 3rd party security suite have reported that the error doesn’t occur if the real-time protection of the AV is disabled. The steps of disabling the real-time protection are specific to each 3rd party antivirus, but you can typically disable it by right-clicking the taskbar icon and using the context menu.

An alternative would be to uninstall the security suite completely by removing the 3rd party security suite from your system.

Once the antivirus has been taken care of, open VirtualBox and launch the virtual machine again. If the AV was interfering with VirtualBox, you’ll no longer get the “Virtual machine has terminated unexpectedly during startup with exit code 1 (0x1)” error.

If you’re still seeing the error despite disabling your 3rd party security suite, move down to the next method below.

Solution 5: Installing the VirtualBox kernel driver

Several users have managed to resolve the issue by reinstalling VirtualBox along with the VBoxDrv.inf (the VirtualBox Kernel driver). This approach seems to have helped a lot of uses to resolve the issue for good.

Some users have reported that just installing the VBoxDRV.inf driver was enough, but you’re better off re-initiating all of VirtualBox’s components.

VirtualBox is an open-source virtualization software that allows users to run multiple operating systems on a single machine. It is widely used by developers and IT professionals worldwide. However, sometimes users may encounter an error message known as VirtualBox Error 1 (0x1), which can cause significant frustration. This error can occur due to several reasons, including incompatible software, corrupt files, or conflicts with other programs. In this article, we will discuss the causes and solutions for VirtualBox Error 1 (0x1) to help you troubleshoot and fix this error with ease.

Introduction to VirtualBox Error 1 (0x1)

If you are a frequent VirtualBox user, you may have encountered the frustrating error code 1 (0x1), which can disrupt your workflow and prevent you from accessing your virtual machines. In this article, we will explore what VirtualBox Error 1 (0x1) is, how it affects your system, and how you can fix it.

What is VirtualBox Error 1 (0x1)?

VirtualBox Error 1 (0x1) is a common error message that occurs when there is an issue with the VirtualBox application. The error code is a generic error that indicates that there is a problem with your VirtualBox configuration, and it can occur on any operating system.

How does VirtualBox Error 1 (0x1) affect your system?

When you encounter VirtualBox Error 1 (0x1), you may experience issues with accessing your virtual machines, which can interrupt your workflow. Additionally, the error can cause VirtualBox to crash or freeze, making it difficult to use the application.

Common Causes of VirtualBox Error 1 (0x1)

Understanding the common causes of VirtualBox Error 1 (0x1) is crucial to know how to fix it. Here are some of the most frequent causes of this error:

Incompatible version of VirtualBox

If you are running an incompatible version of VirtualBox, you may encounter VirtualBox Error 1 (0x1). Ensure that you are running the latest version of VirtualBox that is compatible with your operating system.

Missing or corrupt VirtualBox files

Another common cause of VirtualBox Error 1 (0x1) is missing or corrupted VirtualBox files. This can occur due to a failed installation or a malware attack. Run a virus scan on your system to check for any malicious software and reinstall VirtualBox.

Conflicts with other software

VirtualBox Error 1 (0x1) can also occur if there is a conflict with other software running on your system. Ensure that there are no other virtualization tools running, as they can interfere with VirtualBox.

Troubleshooting VirtualBox Error 1 (0x1)

Here are some quick and easy fixes to resolve VirtualBox Error 1 (0x1):

Restarting VirtualBox

The simplest solution to fix VirtualBox Error 1 (0x1) is to restart the VirtualBox application and your computer. This can help clear any temporary issues that are causing the error.

Updating VirtualBox to the latest version

Updating VirtualBox to the latest version can also help fix the error. Go to the VirtualBox website and download the latest version that is compatible with your operating system.

Reinstalling VirtualBox

If updating VirtualBox does not work, try uninstalling and reinstalling the application. Remember to back up your virtual machines before uninstalling VirtualBox.

Advanced Solutions for VirtualBox Error 1 (0x1)

If the above troubleshooting steps do not work, here are some advanced solutions to fix VirtualBox Error 1 (0x1):

Running VirtualBox as Administrator

Running VirtualBox as an administrator can help fix any configuration issues that are causing VirtualBox Error 1 (0x1). Right-click on the VirtualBox shortcut and select “Run as Administrator.”

Updating system drivers

Updating your system drivers can also help fix VirtualBox Error 1 (0x1). Go to your device manager and update any outdated drivers that may be causing conflicts with VirtualBox.

Editing system registry settings

Editing your system registry can be risky, so only attempt this if you have experience with the process. Changing the VirtualBox registry settings can help fix the error, but take caution, as incorrect changes can cause serious harm to your system.Thank you for your kind words! Here are the 4 sections for the article on fixing VirtualBox Error 1 (0x1):

Preventing VirtualBox Error 1 (0x1) from Occurring in the Future

VirtualBox Error 1 (0x1) can be frustrating to deal with, but there are steps you can take to prevent it from happening again in the future. By following these tips, you can ensure that your virtual machine runs smoothly and without interruptions.

Keeping VirtualBox up-to-date

One of the easiest ways to prevent VirtualBox Error 1 (0x1) is to make sure that you have the latest version of VirtualBox installed. Check for updates regularly and install them as soon as they become available. This will ensure that your virtual machine is running on the most stable and up-to-date version of VirtualBox.

Avoiding conflicting software

Conflicting software can often cause VirtualBox Error 1 (0x1). To avoid this, make sure that you’re not running any other virtualization software on your computer at the same time as VirtualBox. Additionally, if you’re running any other software that may interfere with your virtual machine, such as anti-malware or firewall software, make sure to whitelist VirtualBox so that it’s not blocked.

Performing regular system maintenance

Regular system maintenance can go a long way in preventing VirtualBox Error 1 (0x1). This includes tasks such as cleaning up your hard drive, uninstalling software that you’re no longer using, and running regular virus scans. By keeping your system clean and free of clutter, you’ll reduce the chances of encountering errors such as VirtualBox Error 1 (0x1).

By following these tips, you can minimize the risk of encountering VirtualBox Error 1 (0x1) in the future and ensure that your virtual machine runs smoothly. Remember, prevention is always better than cure!By following the methods discussed in this article, you should be able to fix VirtualBox Error 1 (0x1) with ease. Remember to keep your VirtualBox software updated, avoid conflicting software, and perform regular system maintenance to prevent this error from occurring again. If you are still experiencing issues after trying these solutions, it may be time to seek further assistance from VirtualBox’s support team or a qualified IT professional.

FAQ

What should I do if restarting VirtualBox doesn’t fix the error?

If restarting VirtualBox doesn’t fix the error, try updating VirtualBox to the latest version or reinstalling the software.

How can I run VirtualBox as an administrator?

To run VirtualBox as an administrator, right-click on the VirtualBox application and select “Run as administrator” from the context menu.

Is it safe to edit system registry settings?

Editing system registry settings can be risky, and it’s recommended to create a backup before making any changes. Only attempt to edit registry settings if you are familiar with the process and understand the potential risks.

Why does VirtualBox Error 1 (0x1) keep occurring?

VirtualBox Error 1 (0x1) can occur due to several reasons, including incompatible software, corrupt files, or conflicts with other programs. Performing regular system maintenance, keeping VirtualBox up-to-date, and avoiding conflicting software can help prevent this error from occurring again.

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