XAMPP – Port 80 in use by “Unable to open process” with PID 4! 12

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  1. Open a CMD prompt as administrator and execute the following command: 

    net stop was /y

  2. Open the Run dialog box (press Win+R), then type: services.msc

    Then search for World Wide Web Publishing Service (WWW-Publishing Service) and Web Deployment Agent Service and stop them. You should also disable them.

  3. Start Apache again with XAMPP 🙂

Link Ref: https://www.sitepoint.com/unblock-port-80-on-windows-run-apache/

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