XAMPP PORT 80 IS ALREADY IN USE

[Nobbie]

Describe how you would troubleshoot and resolve this problem, including possible causes and solutions.

I would ask the "author" (i.e. you) to follow the troubleshoot instructions given in the Xampp Control Panel.

At next I would ask the "author" (i.e. you) to read the "Q&A Apache won't start": viewtopic.php?f=16&t=69784#p239058

Finally i would ask the "author" (i.e. you) to the read the "[Q&A] solving Port 80 in use by PID 4 (HTTP.sys) issue": viewtopic.php?f=22&t=69784&p=239058#p239059

I think, this a good first step.