How to Resolve Error Code DC040780 -Security Center Failed to Validate Caller in Windows PC

  • Error code DC040780 Event ID 17, “Security Center Failed to Validate Caller” is a common error that occurs on Windows devices.
  • It is usually due to a corrupted Windows file or third-party software that interferes with the device’s antivirus programs.
  • The good news is that it can be easily fixed.
  • It can be caused by many reasons, including outdated versions of the BIOS or corrupted system files.

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This error can be caused by a number of factors, but the most common one is “Security Center Failed to Validate Caller” error code DC040780 Event ID 17. Most often, it is caused by a corrupted Windows file or third-party software that interferes with the antivirus program of a device.

If you receive this error message, you will need to fix it right away. This error message might appear randomly. It could occur when using Microsoft Visual Studio++ to write code or programs.

What’s the reason for error code DC040780?

  • Outdated BIOS firmware: On Dell computers, this error is often caused by a very outdated version of the BIOS.
  • Damaged system file: In some circumstances corrupted system files can also cause this error code.
  • Third-party security conflict: Another common cause is a mismatch caused by another third-party package that conflicts with its own Windows Defender or Windows Firewall process.

How to troubleshoot error code DC040780

Updated: February 2024

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The Windows Defender program should be turned off

  1. By pressing Win + I, you will be able to run the settings.
  2. Click Update and Security -> Windows Security -> Firewall and Network Protection.
  3. The switch feature can be disabled by clicking on Network (active).
  4. Then click Open Windows Security on the Windows Security page.
  5. The Manage Settings button is located under Virus and Threat Protection.
  6. Toggle switches should also be disabled.

Remove Acronis Active Protection

  1. Make sure your computer is running Acronis True Image.
  2. In the left pane, click Active Protection.
  3. You should see a message saying that Acronis protection has been disabled when you click the button indicating that it has been enabled.

Disabling Windows protection

  1. The registry editor should now be running.
  2. You will find more information about the registry editor later on.
  3. The SecurityHealthService key should have a value of 4. Change it to that value.
  4. To change the value of wscsvc, select another registry key.
  5. The registry editor should be closed.
  6. The computer should be rebooted.

Uninstall or temporarily disable any third-party antivirus programs.

  1. Hold down the Win + I keys to launch Settings.
  2. Your antivirus program can be found by clicking on Apps.
  3. Simply click the Uninstall button next to the antivirus program.

RECOMMENATION: Click here for help with Windows errors.

Frequently Asked Questions

It is a common error that occurs on Windows devices. It can be caused by many reasons. However, it is usually caused by a corrupted Windows file or a third-party program that affects the device's antivirus.

  1. Outdated BIOS firmware.
  2. A corrupted system file.
  3. Security conflict from a third-party vendor.

  1. Run Settings by pressing Win + I.
  2. Click Update and Security -> Windows Security -> Firewall and Network Protection.
  3. Click on Network (active) and disable the switch feature.
  4. No, go back to Windows Security and click Open Windows Security.
  5. Under Virus and Threat Protection, click on Manage Settings.
  6. And disable all toggle switches.
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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.