0x00000001 ERROR_INVALID_FUNCTION Windows Error [FIXED]

Imagine this scenario: you’re working on an important project on your Windows computer, focused and determined to get the task done. Suddenly, out of nowhere, an error message pops up on your screen. Your heart sinks as you read the words “0x00000001 ERROR_INVALID_FUNCTION.” Panic sets in as you try to comprehend what this means and how it will affect your work.

Don’t worry, you’re not alone. Many Windows users have encountered the 0x00000001 ERROR_INVALID_FUNCTION error at some point. It’s a frustrating issue that can disrupt your workflow and leave you searching for answers.

This article is here to help you resolve this pesky error and get back to work. We will provide you with step-by-step troubleshooting instructions, tips to prevent it from happening again, and information about similar error codes you might come across.

So, let’s dive in and fix this Windows error once and for all.

Common Causes of 0x00000001 ERROR_INVALID_FUNCTION

The 0x00000001 ERROR_INVALID_FUNCTION can be triggered by various factors. It is important to identify the specific cause of the error to effectively troubleshoot and fix the issue. Some common causes include:

  1. Incompatible or outdated device drivers: Using outdated or incompatible device drivers can lead to the 0x00000001 ERROR_INVALID_FUNCTION. It is essential to keep your drivers up to date by regularly checking for updates from the manufacturer’s website or using reliable driver update software.
  2. Corrupted system files: If certain system files become corrupted or damaged, it can result in the 0x00000001 ERROR_INVALID_FUNCTION. Running a system file checker scan can help identify and repair any corrupted files.
  3. Malware infections: Malicious software, such as viruses or malware, can interfere with system functions and trigger the 0x00000001 ERROR_INVALID_FUNCTION. Using reputable antivirus software and performing regular scans can help detect and remove any malware infections.
  4. Software conflicts: In some cases, conflicts between different software applications can cause the 0x00000001 ERROR_INVALID_FUNCTION. It is recommended to uninstall any recently installed software or perform a clean boot to identify the conflicting application.
  5. Hardware issues: Faulty or malfunctioning hardware components, such as RAM or hard drives, can also contribute to the occurrence of the 0x00000001 ERROR_INVALID_FUNCTION. Performing hardware diagnostics can help identify and resolve any hardware-related issues.

Identifying and addressing the specific cause of the 0x00000001 ERROR_INVALID_FUNCTION is essential for resolving the error and ensuring optimal system performance.

By understanding these common causes, you can take appropriate steps to troubleshoot and fix the 0x00000001 ERROR_INVALID_FUNCTION on your Windows system.

Troubleshooting Steps for 0x00000001 ERROR_INVALID_FUNCTION

To troubleshoot and fix the 0x00000001 ERROR_INVALID_FUNCTION, you can follow these steps:

Step 1: Run a System Scan

Perform a full system scan using your preferred antivirus software to check for any malware or viruses that could be causing the error. Remove any threats that are detected.

Step 2: Update Device Drivers

Outdated or incompatible device drivers can trigger the 0x00000001 ERROR_INVALID_FUNCTION. Visit the official website of your device manufacturer and download the latest drivers for your hardware. Install the updated drivers and restart your computer.

Step 3: Perform a Clean Boot

A clean boot helps identify if any third-party software is conflicting with the operation of your system. Follow these steps:

  1. Press Windows Key + R to open the Run dialog box.
  2. Type msconfig and press Enter to open the System Configuration window.
  3. In the General tab, click on “Selective startup” and uncheck the box next to “Load startup items”.
  4. Go to the Services tab, check the box next to “Hide all Microsoft services”, and click on “Disable all”.
  5. Click on the Startup tab, then click “Open Task Manager”.
  6. In the Task Manager, disable all startup items.
  7. Close the Task Manager and click “OK” in the System Configuration window.
  8. Restart your computer.

Step 4: Check for Windows Updates

It is essential to keep your Windows operating system up to date to prevent errors. Follow these steps to check for updates:

  1. Click on the Start button and open Settings.
  2. Go to Update & Security.
  3. Click on Windows Update and then select Check for updates.
  4. If any updates are available, click on Download and Install.

Step 5: Perform a System Restore

If the error started occurring recently, performing a system restore can help revert your system to a previous stable state. Follow these steps:

  1. Press Windows Key + R to open the Run dialog box.
  2. Type rstrui and press Enter to open the System Restore window.
  3. Follow the on-screen instructions to select a restore point and restore your system.

By following these troubleshooting steps, you should be able to resolve the 0x00000001 ERROR_INVALID_FUNCTION on your Windows system. If the error persists, it may be necessary to seek further assistance or consult with a professional.

Error CodePossible CauseSolution
0x00000001Corrupted system filesRun a system file checker scan
0x00000001Incompatible softwareUninstall or update the conflicting software
0x00000001Hardware issueCheck hardware connections and replace faulty components if necessary

Additional Tips to Prevent 0x00000001 ERROR_INVALID_FUNCTION

To prevent the 0x00000001 ERROR_INVALID_FUNCTION from occurring in the future, consider implementing the following tips:

  1. Keep your system updated: Regularly check for Windows updates and install them promptly. Updates often contain bug fixes and improvements that can help prevent errors like the 0x00000001 ERROR_INVALID_FUNCTION.
  2. Maintain good security practices: Use reliable antivirus software and keep it updated to protect your system from malware and other security threats that can cause errors.
  3. Scan for system errors: Run regular system scans to identify and fix any corrupt or missing system files that could contribute to the 0x00000001 ERROR_INVALID_FUNCTION.
  4. Be cautious with software installations: Only download and install software from trusted sources to avoid incompatible or poorly coded applications that can trigger errors.
  5. Manage hardware compatibility: Ensure that all your hardware components are compatible with your operating system and have the latest driver updates installed. Incompatible or outdated drivers can cause errors like the 0x00000001 ERROR_INVALID_FUNCTION.

Note: Following these preventive measures can help maintain system stability and minimize the occurrence of the 0x00000001 ERROR_INVALID_FUNCTION. However, it’s important to remember that not all errors can be completely prevented, and occasional troubleshooting may still be required.

Error Prevention Tips
Keep your system updated
Maintain good security practices
Scan for system errors
Be cautious with software installations
Manage hardware compatibility

Common Error Codes Similar to 0x00000001 ERROR_INVALID_FUNCTION

While the 0x00000001 ERROR_INVALID_FUNCTION is a specific error code, there are other common error codes that users may encounter in Windows. Understanding these error codes can help you troubleshoot and fix issues more effectively.

Here are some examples of common error codes that are similar to the 0x00000001 ERROR_INVALID_FUNCTION:

Error CodeDescription
0x00000002ERROR_FILE_NOT_FOUND: The system cannot find the specified file.
0x00000003ERROR_PATH_NOT_FOUND: The system cannot find the path specified.
0x00000004ERROR_TOO_MANY_OPEN_FILES: The system cannot open the file.
0x00000005ERROR_ACCESS_DENIED: Access is denied.
0x00000006ERROR_INVALID_HANDLE: The handle is invalid.

These error codes can occur due to various reasons, such as missing files, incorrect file paths, insufficient permissions, or invalid handles. To fix these errors, you can try troubleshooting steps specific to each error code, such as checking file existence, verifying file paths, adjusting permissions, or reestablishing valid handles.

By familiarizing yourself with these common error codes, you can better navigate and resolve issues that might arise while using Windows.


The 0x00000001 ERROR_INVALID_FUNCTION is a frustrating Windows error that can cause system instability and hinder your user experience. However, with the troubleshooting steps provided in this article, you can effectively fix this error and prevent it from recurring in the future.

To resolve this error, it is essential to identify and address its root cause. This may involve updating device drivers, performing system scans to detect and repair corrupted files, or resolving any software conflicts. Additionally, keeping your system updated with the latest Windows updates and maintaining good security practices can help prevent future occurrences of this error.

By following these recommendations, you can ensure a smooth and error-free computing experience. Remember to always stay proactive in maintaining the health and performance of your Windows system, and don’t hesitate to seek further assistance if needed.

Nilesh Kamble is Certified in Microsoft & GCP, having 13+ Years of Experience in IT Industry. As a Senior IT Employee, having vast experience on Windows Server, Windows Client, Powershell, Cloud Technologies. Passionate about Laptop, Mobiles & Other emerging Technologies.