diff --git a/windows/threat-protection/windows-defender-atp/settings-windows-defender-advanced-threat-protection.md b/windows/threat-protection/windows-defender-atp/settings-windows-defender-advanced-threat-protection.md
index bf8283a33f..d47d1f13da 100644
--- a/windows/threat-protection/windows-defender-atp/settings-windows-defender-advanced-threat-protection.md
+++ b/windows/threat-protection/windows-defender-atp/settings-windows-defender-advanced-threat-protection.md
@@ -73,6 +73,8 @@ Take the following steps to change the date and time format to conform to the fo
     ![Image of region settings in control panel](images/atp-region-control-panel.png)
 
 #### Known issues with regional formats
+
+**Date and time formats**<br>
 There are some known issues with the time and date formats. 
 
 The following date formats are supported:
@@ -85,6 +87,8 @@ The following date and time formats are currently not supported:
 - Date format with yy. Will only show yyyy.
 - Time format HH:mm:ss is not supported (the 12 hour AM/PM format is not supported). Only the 24-hour format is supported.
 
+**Use of comma to indicate thousand**<br>
+Support of use of comma as a separator in numbers are not supported. Regions where a number is separated with a comma to indicate a thousand, will only see the use of a dot as a separator. For example, 15,5K is displayed as 15.5K.
 
 
 ## License