Basically, this error means that the virtual machine stopped suddenly, often because of problems with system resources or software limitations, like conflicts with security programs or virtual machine platform settings. A common cause is conflicts with security software, like aggressive antivirus programs, or problems with Windows Hypervisor settings. Also, missing or corrupt log files (like VBoxHardening.log) can make it hard to troubleshoot and can lead to this error. In this article, we will discuss different ways to solve this error.
1. Restart your system
Restarting your computer can resolve background processes or issues that prevent your virtual machine from starting. A reboot resets system resources and virtualization software, allowing the virtual machine to start without problems. This easy step can often fix unexpected shutdowns.
2. Disable the antivirus while running the virtual machine
Sometimes antivirus software can block virtual machines from working properly. Temporarily turning off the antivirus lets the virtual machine start without restrictions. This can fix problems caused by the antivirus stopping important processes. You can also check our detailed guide on how to uninstall antivirus here.
3. Install the VirtualBox kernel driver
If VirtualBox can’t start a virtual machine, it might be because its kernel driver is missing or not working. This driver connects the software to your computer’s hardware, enabling resource access. Without it, the virtual machine won’t start and may show errors. Installing the right driver helps resolve compatibility issues.
4. Install Microsoft’s bug fix update (Windows 7 only)
On Windows 7, installing Microsoft’s bug fix update can improve virtualization software. This update fixes system bugs and kernel conflicts that affect virtualization, enhancing stability. Applying the patch resolves known issues, leading to better performance of virtual environments and a more stable system for virtualization tasks.
