Does Microsoft Defender Recognize Carbon Black as Antivirus?
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.

- 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.
Ensure you have administrator privileges on the Windows workstation to view or modify security policies and antivirus settings.
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.
Open the Windows Security app and navigate to 'Virus & threat protection' to verify which antivirus provider is currently active.
Ensure Carbon Black is fully updated and its real-time protection is enabled so Windows recognizes it as the primary security provider.
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.

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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.




