Are you trying to install another Xampp Server with a different version for whatever reason you have and you encountered an error regarding ports? Some would say that you should edit a file, but it did not work for me. Below are the steps that fixed the error for me.
- Open your new Xampp control panel.
- Go to Config (the one located at the top right corner of the window)
- Click Service and Port settings
- Change Main Post to 8080
- Change SSL Port to 4433
- Save your changes
Then Start your Apache and you shoud be good.