How To's Windows Defender

How to Read Windows Defender Event Logs Using WinDefLogView

Windows Defender is a crucial security feature in Windows, providing real-time protection against various threats. However, understanding its activities requires delving into its logs. WinDefLogView is a handy tool that simplifies the process of viewing Windows Defender logs. This blog post will guide you through the steps to read Windows Defender event logs using WinDefLogView.

Step-by-Step Guide to Reading Windows Defender Event Logs Using WinDefLogView


Before you start, ensure you have the following:

  • A Windows PC with Windows Defender enabled.
  • Internet access to download WinDefLogView.

Step 1: Download and Install WinDefLogView

  1. Open your web browser and go to the WinDefLogView download page.
  2. Download the tool by clicking on the Download WinDefLogView link.
  3. Extract the downloaded ZIP file to a convenient location on your computer.

Step 2: Run WinDefLogView

  1. Navigate to the folder where you extracted WinDefLogView.
  2. Double-click on WinDefLogView.exe to run the application. No installation is required as it is a portable tool.

Step 3: View Windows Defender Logs

  1. Once WinDefLogView is open, it will automatically load and display the Windows Defender event logs.
  2. The interface shows various columns including:
    • Event Time: The date and time the event occurred.
    • Event ID: The ID associated with the specific event.
    • Event Type: The type of event (e.g., detection, update).
    • Threat Name: The name of the detected threat (if applicable).
    • Action: The action taken by Windows Defender (e.g., quarantined, removed).

Step 4: Filter and Analyze Logs

  1. Use the toolbar options to filter the logs based on your requirements. For example, you can filter by date, event type, or threat name.
  2. To get detailed information about a specific event, double-click on the entry. This will open a new window with more details.

Step 5: Export Logs

  1. To export the logs for further analysis or reporting, go to File > Save Selected Items.
  2. Choose a file format (e.g., CSV, TXT, XML) and select the location where you want to save the file.
  3. Click Save to export the selected logs.

Additional Tips

  • Regular Monitoring: Regularly check the logs to stay informed about the security status of your system.
  • Understanding Event IDs: Familiarize yourself with common Windows Defender Event IDs to quickly understand the logs. For example, Event ID 1000 indicates a scan started, and Event ID 1001 indicates a scan completed.
  • Keep WinDefLogView Updated: Check the NirSoft website periodically for updates to WinDefLogView to ensure compatibility with the latest Windows updates.


By following these steps, you can easily read and analyze Windows Defender event logs using WinDefLogView. This tool provides a straightforward way to monitor your system’s security and understand the actions taken by Windows Defender. If you have any questions or need further assistance, feel free to leave a comment below.

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