Unable to access localhost after starting Xampp

You might need to be accessing http://localhost:8080 or some other port. I think 8080 is the default though.

I had the similar problem with Xampp. Xampp and Skype use port 80. I changed xampp port to 8080 it worked at the beginning but after I restarted Xampp didn't work anymore. I inactivated Skype and put Xampp on the default port which is port 80. Haven't had any problem since then. I hope it helps you!