diff --git a/aspnet-core/installation-and-upgrade/Mac-Installer_images/Mac_Catalina_MacOS_Alert.png b/aspnet-core/installation-and-upgrade/Mac-Installer_images/Mac_Catalina_MacOS_Alert1.png
similarity index 100%
rename from aspnet-core/installation-and-upgrade/Mac-Installer_images/Mac_Catalina_MacOS_Alert.png
rename to aspnet-core/installation-and-upgrade/Mac-Installer_images/Mac_Catalina_MacOS_Alert1.png
diff --git a/aspnet-core/installation-and-upgrade/Mac-Installer_images/Mac_Catalina_MacOS_Alert2.png b/aspnet-core/installation-and-upgrade/Mac-Installer_images/Mac_Catalina_MacOS_Alert2.png
new file mode 100644
index 00000000..5e18cb42
Binary files /dev/null and b/aspnet-core/installation-and-upgrade/Mac-Installer_images/Mac_Catalina_MacOS_Alert2.png differ
diff --git a/aspnet-core/installation-and-upgrade/asp-net-core-mac-installer.md b/aspnet-core/installation-and-upgrade/asp-net-core-mac-installer.md
index de97fedb..66cdc758 100644
--- a/aspnet-core/installation-and-upgrade/asp-net-core-mac-installer.md
+++ b/aspnet-core/installation-and-upgrade/asp-net-core-mac-installer.md
@@ -23,13 +23,16 @@ documentation: ug
 
    While running Essential Studio ASP.NET Core Mac Installer on Catalina MacOS or later, the below alert will be displayed.
 
-   ![Alert Image](Mac-Installer_images/Mac_Catalina_MacOS_Alert.png)  
+   ![Alert Image](Mac-Installer_images/Mac_Catalina_MacOS_Alert1.png)  
      
    If you receive this alert, follow the below steps for the easiest solution.   
 
    1.	Right-click the downloaded pkg file.
-   2.	Select the "Open With" option and choose "Installer (Default)".
-   3. Installer window will be opened.
+   2.	Select the "Open With" option and choose "Installer (Default)". The following pop-up appears.
+   
+		![pop-up Image](Mac-Installer_images/Mac_Catalina_MacOS_Alert2.png)
+   
+   3.	When you click "Open" the installer window will be opened.
 
 ## Step-by-Step Installation