error running apache after xampp install

Question

I installed xampp on win7 and get this error when starting apache. I unchecked skype and nothing changes. How do I find what is using port 80? How do I fix this please. I do

Answer 1

After changing main port from 80 to 8080 you have to change the config in XAMPP control panel as I show in the images:

1)

2)

3)

Then restart the service and that's it !