http://localhost/ not working on Windows 7. What's the problem?

Question

I have a big problem opening http://localhost/ on Windows 7 (beta). I installed this os and everything went great; when I installed Wamp I saw that localhost is not working

Answer 1

See the above solutions are very good.But whenever you get this 404 eroor,first see this.I am sure the problem will be solved...

Just go to httpd.conf file by clicking wamp server symbol in bottom right taskbar-Apache->httpd.conf... or c:\\wampt\\bin\\apache\\apache2.2.1\\conf\\httpd.conf and approximate on line no 46 you will find "Listen 80"...just make sure it is written "80" after Listen...if it not then change it to 80...And your problem will be solved...