Virtualbox Fatal Keyboard Error 99 [SOLVED!]

Virtualbox is a powerful virtualization tool that allows users to run multiple operating systems on a single computer simultaneously. It is widely used by developers, system administrators, and IT professionals to create virtual environments for testing, software development, and server deployment. Virtualbox is a popular choice for many users because it is free, open-source, and easy to use. However, despite its many benefits, Virtualbox users often encounter various errors and issues that can disrupt their virtualization experience. One of the most common and frustrating issues is the Virtualbox Fatal Keyboard Error 99.

This error can occur suddenly and without warning, causing users to lose keyboard input during virtual machine operation. The error can be detrimental to users, preventing them from working efficiently and potentially resulting in the loss of important data. In this article, we will discuss what Virtualbox Fatal Keyboard Error 99 is, its causes, and practical steps users can take to troubleshoot and resolve the issue. We will also provide tips and preventive measures to help users avoid encountering the error in the future.

Understanding Virtualbox Fatal Keyboard Error 99

Virtualbox Fatal Keyboard Error 99 is a critical error that occurs when the virtual machine is unable to receive keyboard input. The error is often accompanied by an error message that reads, “Fatal: no bootable medium found! System halted.” or “Fatal: Could not read from the boot medium! System halted.” Users may also notice that the virtual machine freezes, and they are unable to input any commands or navigate through the system.

The error can occur due to several reasons, such as outdated or incompatible Virtualbox software, conflicting drivers, and incorrect virtual machine settings. When any of these issues occur, the virtual machine can become unresponsive, causing the Fatal Keyboard Error 99.

The impact of the error on users can be significant, preventing them from working efficiently and leading to the loss of important data. For instance, if users were working on a virtual machine and the error occurred, they could lose unsaved data. This could lead to frustration and wasted time.

To address the issue, it is essential to understand the causes of Virtualbox Fatal Keyboard Error 99 and how to troubleshoot and resolve it.

Causes of Virtualbox Fatal Keyboard Error 99

There are several common causes of Virtualbox Fatal Keyboard Error 99. Understanding these causes can help users troubleshoot and resolve the error. Here are some of the most common causes:

1. Outdated or incompatible Virtualbox software – One of the most common causes of the error is outdated or incompatible Virtualbox software. If the Virtualbox software is not up-to-date or not compatible with the host operating system, it can cause conflicts and errors, including the Fatal Keyboard Error 99.
2. Conflicting drivers – Conflicting drivers can also cause Virtualbox Fatal Keyboard Error 99. When two or more drivers are trying to access the same resources, such as the keyboard or mouse, conflicts can occur, leading to the error.
3. Incorrect virtual machine settings – Incorrect virtual machine settings can also cause the Fatal Keyboard Error 99. This can happen when the virtual machine settings are not configured correctly, leading to conflicts with the host system.
4. Corrupted virtual hard disk – A corrupted virtual hard disk can also cause Virtualbox Fatal Keyboard Error 99. If the virtual hard disk is corrupted or damaged, the virtual machine may fail to start, leading to the error.
5. Insufficient resources – Insufficient resources, such as RAM, CPU, or storage, can also cause the Fatal Keyboard Error 99. When the virtual machine does not have enough resources to operate correctly, it can lead to various errors, including the Fatal Keyboard Error 99.

Troubleshooting Virtualbox Fatal Keyboard Error 99

If you encounter Virtualbox Fatal Keyboard Error 99, there are several troubleshooting steps you can take to resolve the issue. Here is a step-by-step guide on how to troubleshoot and resolve the error:

1. Update Virtualbox software – One of the primary reasons for the error is outdated or incompatible Virtualbox software. Therefore, the first step is to ensure that Virtualbox is up-to-date. You can do this by navigating to the Virtualbox website and downloading the latest version of the software.
2. Remove conflicting drivers – Conflicting drivers can also cause Virtualbox Fatal Keyboard Error 99. To resolve this, you can navigate to the Device Manager in the host operating system and uninstall any conflicting drivers. Once you have removed the conflicting drivers, restart the host operating system and try launching the virtual machine again.
3. Reset virtual machine settings – Incorrect virtual machine settings can also cause the Fatal Keyboard Error 99. To resolve this, navigate to the virtual machine’s settings and ensure that the keyboard and mouse settings are correctly configured. You can also try resetting the virtual machine settings to their default values and restarting the virtual machine.
4. Repair or replace the virtual hard disk – If the virtual hard disk is corrupted or damaged, it can cause Virtualbox Fatal Keyboard Error 99. You can try repairing the virtual hard disk by using Virtualbox’s built-in disk utility tool. If the virtual hard disk is beyond repair, you may need to replace it with a new one.
5. Increase resources – Insufficient resources, such as RAM, CPU, or storage, can also cause the error. Therefore, you can try increasing the virtual machine’s resources by navigating to the virtual machine’s settings and increasing the amount of RAM, CPU, or storage.
6. Reinstall Virtualbox software – If none of the above steps resolve the error, you can try reinstalling Virtualbox software. To do this, uninstall Virtualbox from the host operating system and then reinstall it.

Preventing Virtualbox Fatal Keyboard Error 99

While Virtualbox Fatal Keyboard Error 99 can be frustrating to encounter, there are several preventive measures you can take to avoid the error. Here are some tips to help you prevent the error from occurring:

1. Keep Virtualbox up-to-date – One of the most important preventive measures is to keep Virtualbox up-to-date. Regularly check for software updates and download the latest version to ensure compatibility with your host operating system.
2. Keep system drivers up-to-date – It is also crucial to keep your system drivers up-to-date. Check for driver updates regularly, and install them promptly to avoid conflicts with Virtualbox and other software.
3. Set virtual machine configurations correctly – Ensure that you set the virtual machine configurations correctly to avoid conflicts with the host operating system. Configure the virtual machine’s keyboard and mouse settings correctly and ensure that the virtual machine has sufficient resources.
4. Backup virtual machines – Regularly backup your virtual machines to avoid losing important data in the event of an error. You can use Virtualbox’s built-in backup feature or third-party backup software to create backups.
5. Use antivirus software – Use antivirus software to protect your system and virtual machines from malware and other security threats. Viruses and other malware can cause errors, including Virtualbox Fatal Keyboard Error 99.

By following these preventive measures, you can avoid encountering Virtualbox Fatal Keyboard Error 99 and other errors that can disrupt your virtualization experience. Regularly updating Virtualbox software and system drivers, configuring virtual machines correctly, backing up virtual machines, and using antivirus software can help ensure a seamless virtualization experience.

Advanced Troubleshooting Techniques

If you have tried the previous troubleshooting steps and are still experiencing Virtualbox Fatal Keyboard Error 99, you may need to try some advanced troubleshooting techniques. Here are some advanced techniques you can try:

1. Use a different virtual machine – If the error persists even after trying to troubleshoot the current virtual machine, you may want to try creating a new virtual machine. This can help isolate the problem and determine if the issue is with the virtual machine or the Virtualbox software.
2. Run Virtualbox in compatibility mode – If you are using an older version of Windows, you may need to run Virtualbox in compatibility mode. To do this, right-click on the Virtualbox shortcut, select Properties, and then click on the Compatibility tab. Check the box next to “Run this program in compatibility mode for” and select the appropriate version of Windows.
3. Check for conflicting software – Conflicting software, such as security software, can cause Virtualbox Fatal Keyboard Error 99. Check for any security software installed on your system and disable it temporarily to see if it resolves the issue.
4. Check for hardware issues – Hardware issues, such as faulty RAM or hard drive, can cause Virtualbox Fatal Keyboard Error 99. Run hardware diagnostics to ensure that your hardware is working correctly.
5. Contact Virtualbox support – If you have exhausted all other troubleshooting techniques and are still experiencing the error, you can contact Virtualbox support for assistance. They can provide additional troubleshooting steps or help resolve the issue.

Conclusion

Virtualbox Fatal Keyboard Error 99 can be a frustrating error that can disrupt your virtualization experience. However, by understanding the causes of the error and following the troubleshooting steps outlined in this article, you can resolve the issue and prevent it from happening in the future.

Outdated or incompatible Virtualbox software, conflicting drivers, incorrect virtual machine settings, a corrupted virtual hard disk, and insufficient resources are some of the most common causes of Virtualbox Fatal Keyboard Error 99. To troubleshoot the error, you can update Virtualbox software, remove conflicting drivers, reset virtual machine settings, repair or replace the virtual hard disk, increase resources, or reinstall Virtualbox software.

Preventive measures, such as keeping Virtualbox up-to-date, keeping system drivers up-to-date, configuring virtual machines correctly, backing up virtual machines, and using antivirus software can help prevent Virtualbox Fatal Keyboard Error 99 and other errors.

If you are still experiencing the error after trying the previous troubleshooting steps, you can try some advanced techniques, such as using a different virtual machine, running Virtualbox in compatibility mode, checking for conflicting software, checking for hardware issues, or contacting Virtualbox support.

In summary, by following these steps, you can resolve Virtualbox Fatal Keyboard Error 99 and enjoy a seamless virtualization experience. Remember to keep your Virtualbox software up-to-date, regularly back up your virtual machines, and take preventive measures to avoid encountering errors in the future.