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 can be caused by many reasons. However, it is usually due to a corrupted Windows file or third-party software that interferes with the device’s antivirus programs.

This error message can appear randomly. It can appear when writing code or programs using Microsoft Visual Studio++. Regardless of when or how this error occurs, the good news is that it can be easily fixed.

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  • Outdated BIOS firmware: On Dell computers, this error is often caused by a very outdated version of the BIOS.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


Turn off Windows Defender

  1. Run the settings using 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.

Remove Acronis Active Protection

  1. Run Acronis True Image on your system.
  2. Click on Active Protection. You will find it in the left pane.
  3. Click the button indicating that Acronis protection is enabled. You should then see a message indicating that Acronis protection is disabled.

Disabling Windows protection

  1. Run the registry editor.
  2. Go to the registry editor path, which we will describe later.
  3. Select the SecurityHealthService key. Change its value to 4.
  4. Now select another registry key named wscsvc. Change the value to 4.
  5. Close the registry editor.
  6. Reboot the computer.

Uninstall or temporarily disable any third-party antivirus programs.

  1. Launch Settings by pressing Win + I.
  2. Click on Apps and find your antivirus program.
  3. Select the antivirus program and click Uninstall.

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.