Learn Editor: Update collect-diagnostic-data.md

Author: YongRhee-MSFT

defender-endpoint/collect-diagnostic-data.md

@@ -49,17 +49,20 @@ On at least two devices that are experiencing the same issue, obtain the `.cab`
 1. Open Command Prompt as an administrator by following these steps:
 
     a. Open the **Start** menu.
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     b. Type **cmd**. Right-click on **Command Prompt** and then select **Run as administrator**.
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     c. Specify administrator credentials or approve the prompt.
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 1. Navigate to the directory for Microsoft Defender Antivirus: 
 
    `cd C:\ProgramData\Microsoft\Windows Defender\Platform\<version>`
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    Where `<version>` is the actual version that starts with `4.18.2xxxx.x`
 
+> [!NOTE]
+> C:\ProgramData is a hidden folder.  If you don't have a folder that starts with 4.18.2xxxx.x in C:\ProgramData\Microsoft\Windows Defender\Platform\, then you will need to go to C:\Program Files\Windows Defender\
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 1. Type the following command, and then press **Enter**
 
     ```Dos