Fix Event ID 1000 Application Error on Windows 10 / 11

Fix Event ID 1000 Application Error on Windows 10 11

User Case

We just sorted this issue out for a client yesterday – so perfect time to say a few things about how we fixed this error.

Hint (Reinstalling .NET fixed the error for our client – but do try the others in case that doesn’t work! 🙂 

What is Event ID 1000?

We find it in an app called Event Viewer. There will be an entry that means that a specific application crashed due to unknown events.

Along with the error code, you will also be given the file path of the application which crashed.

Common causes of Event ID 1000 error

Here are some common reasons:

  1. Applications stop working: This happens when the app has stopped or can’t run right. This triggers the Event ID 1000 error.
  2. Corrupt system files: When your computer’s files are bad, it can lead to this Error.
  3. Specific apps crash: If a certain app crashes, it may cause this issue.
  4. Malware: If malware is present in your computer, it could end up causing an Event ID 1000 error.
  5. Bad system files: The Event ID 1000 error can also happen if your computer’s system files are corrupt.

Fix for Event ID 1000 Application Error on Windows 10 / 11:

1. Run SFC Scan

Here’s how:

  1. Open the Command Prompt as an administrator.
  2. Type “sfc /scannow” and press Enter.
  3. Wait for the scan to complete.
  4. If any corrupted system files are found, SFC will attempt to repair them automatically.

2. Clean boot your computer

This involves starting your computer with only essential programs and services running.

Here’s how to perform a clean boot:

  1. Press the Windows key + R on your keyboard to open the Run dialogue box.
  2. Type “msconfig” and press Enter to open the System Configuration utility.
  3. In the General tab, select “Selective startup” and uncheck the box next to “Load startup items”.
  4. Go to the Services tab and check the box that says “Hide all Microsoft services”.
  5. Click on “Disable all” to disable all remaining services.
  6. Navigate to the Startup tab and click on “Open Task Manager”.
  7. In Task Manager, disable each startup item by selecting it and clicking on “Disable”.
  8. Close Task Manager and go back to the System Configuration utility.
  9. Click on OK and then restart your computer

3. Check for the latest Windows updates

Click on the Start button and type in “Windows Update”.
Click on “Check Updates”

4. Reinstall Microsoft .NET Framework

  1. Open the Control Panel on your computer.
  2. Click on “Programs” or “Programs and Features.”
  3. Look for Microsoft .NET Framework in the list of installed programs.
  4. Right-click on it and select “Uninstall” or “Change/Remove.”
  5. Follow the prompts to uninstall Microsoft .NET Framework.
  6. After uninstalling, restart your computer.
  7. Go to the official Microsoft website and download the latest version of Microsoft .NET Framework.
  8. Run the downloaded installer and follow the installation instructions.
  9. Once installed, restart your computer again.

Uninstalling the specific application causing the error

 Here are the steps you can follow:

  1. Open Control Panel.
  2. Look for the “Programs” or “Programs and Features” option.
  3. Click on it to open the list of installed applications.
  4. Locate the application that is causing the Event ID 1000 error (from Event Viewer as explained above)
  5. Right-click on the application and select “Uninstall” from the context menu.
  6. Follow the on-screen prompts to complete the uninstallation process.
  7. Once the uninstallation is done, restart your computer.

Prevention Tips for Event ID 1000 Error

1. Keep your system updated

  • Updated software and operating systems provide bug fixes and security patches that can help prevent errors like event ID 1000.
  • Updates often include improvements in performance and stability, reducing the chances of encountering errors.
  • Keeping your system up to date ensures compatibility with newer applications, minimizing the risk of conflicts that could lead to event ID 1000 errors.
  • Regular updates can help avoid corrupted system files, which can be a common cause of the error.

2. Regularly scan for malware or viruses

It’s important to regularly scan for malware or viruses. This helps to ensure that your computer is free from any malicious software or harmful infections.

By scanning your system regularly, you can detect and remove any potential threats before they cause issues.

3. Use reliable software and applications

When you opt for trusted and reputable software, you reduce the risk of encountering compatibility issues or installing malicious programs that can cause system errors.

By choosing reliable applications, you can ensure smoother operation and minimize the chances of experiencing crashes or performance problems. 

Keeping your system up-to-date with the latest versions also helps maintain compatibility with other components and enhances overall system stability. 

Avoid downloading applications from unfamiliar or unverified sources as they may contain malware or be poorly coded, leading to compatibility issues with your operating system.


In conclusion, Event ID 1000 is a common application error that can affect Windows operating systems. It can be caused by corrupt system files or specific applications crashing unexpectedly.

Resolving this error may require running scans, performing clean boots, and uninstalling problematic software. 

Still unable to resolve the error? No worries, our PC repair geeks are just around the corner!

I am a computer engineer holding a bachelor's degree in Computer Science, complemented by a Master's in Business Administration from University of Strathclyde, Scotland. I currently work as a Senior IT Consultant in Melbourne, Australia. With over 15 years of...