How do I free my port 80 on localhost Windows?

Question

I installed XAMPP 1.6.8 and for some reason it didn\'t work. Later realized port 80 is not free or not listening. How can I release it or make it free?

Thanks a lot!

Answer 1

I had this problem previously,

if you see the Task manager(after enabling the view for PID), you will find PID=4 is "port 80 in use by NT Kernel & System; "

Just go to

1. Control Panel
2. Programs
3. Turn Windows features on/off
4. check if the World wide web services under IIS is checked

If so, Uncheck and netstat(or TCPVIEW) again to see if 80 is free.