Security Policy Errors

Does Microsoft Defender Recognize Carbon Black as Antivirus?

John WilsonJohn Wilson Oct 7, 2026 868 views

Question details

The user wants to know if Microsoft Defender recognizes Carbon Black Defense or Protect as a valid antivirus and how they operate together on Windows workstations.

Does Microsoft Defender Recognize Carbon Black as Antivirus?
Product
Microsoft Defender / Carbon Black
Device & OS
Windows
Scenario
Installing and running Carbon Black on a Windows workstation that has Microsoft Defender enabled.
Observed behavior
Windows may disable Defender Antivirus automatically, or Defender may need to be configured to run in passive mode alongside the third-party software.
Before you start

Ensure you have administrator privileges on the Windows workstation to view or modify security policies and antivirus settings.

Solution 1Recommended

Configure Microsoft Defender to Work with Third-Party Antivirus

Understand the automatic disabling feature and how to set Defender to passive mode when Carbon Black is installed.

When a recognized third-party antivirus like Carbon Black is installed, Windows automatically disables Microsoft Defender's active scanning to prevent conflicts.

However, Microsoft Defender can be configured to run in 'Passive Mode', allowing it to scan files and provide reports without interfering with Carbon Black's primary protection.

1
Check Windows Security Center

Open the Windows Security app and navigate to 'Virus & threat protection' to verify which antivirus provider is currently active.

2
Verify Carbon Black Status

Ensure Carbon Black is fully updated and its real-time protection is enabled so Windows recognizes it as the primary security provider.

3
Enable Passive Mode

If you are using Microsoft Defender for Endpoint, configure the 'ForceDefenderPassiveMode' registry key or use Group Policy to set Defender to passive mode alongside Carbon Black.

Configure Microsoft Defender to Work with Third-Party Antivirus
Microsoft Documentation: For detailed Group Policy configurations, refer to official Microsoft support guidance on running Defender alongside third-party antimalware.
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Frequently Asked Questions

Why did Microsoft Defender turn off automatically?

Windows automatically disables Microsoft Defender's active protection when it detects another recognized antivirus program, such as Carbon Black, to prevent performance issues and software conflicts.

Can I run Carbon Black and Microsoft Defender at the same time?

Yes, but they should not both be in active mode. Microsoft Defender can operate in passive mode or as an endpoint detection and response (EDR) complement while Carbon Black handles active antivirus duties.

How do I know if Windows recognizes my Carbon Black installation?

Go to Settings > Update & Security > Windows Security, and click on 'Virus & threat protection'. If Carbon Black is recognized, it will be listed as the active security provider.