XAMPP, Apache - Error: Apache shutdown unexpectedly

 

           As I am working in a corporate where developers faces firewall issues, So for me none of above resolved my issue.

           As the port is not used by Skype, but by some other internal applications So I followed below steps to resolve issue: 

Step 1 - From XAMPP Control Panel, under Apache, click the Config button, and select the Apache   (httpd.conf).
Inside the httpd.conf file, somehow I found line that says:

Listen 80            

And change the 80 into any number / port you want. In my scenario I’m using port 8080.

Listen 8080 

Still from the httpd.conf file, I found another line that says: 

ServerName localhost:80  
And change 80 to 8080.   
ServerName localhost:8080

Step 2 - From XAMPP Control Panel, under Apache, click the Config button again, but this time select the Apache (httpd-ssl.conf). Inside the httpd-ssl.conf file, find line that says

Listen 443 
 
And change the 443 into any number / port you want. I’ll using 4433 as the new port number.
 
Listen 4433 
 
Still from the httpd-ssl.conf file, find another line that says

<VirtualHost _default_:443> ServerName localhost:443 
 
And change 443 to 4433.

<VirtualHost_default_:4433> ServerName localhost:4433 
 
Remember to save httpd.conf file and httpd-ssl.conf after you make some changes. Then restart the Apache service.