Problem with xampp - why apache server does not start

While using xampp you can be faced with problem when apache server cannot start. Even if console window show info, the status and button does not change.

The problem is not in xampp itself but in another program on your computer that uses port 80. In my case it was skype. To turn it off in skype open Tools -> Options -> Tab 'Advanced' -> 'Connection' and uncheck 'Use port 80 and 443...'

Now just save and restart skype. Let's check results.

It works.