WAMPSERVER Server not working

I have just install开发者_运维技巧ed wampserver on windows 7 it works fine for me but when i restart windows and click on Start Wamp Server it starts but not showing any page at http://localhost i have not any skype or any service install let me know how can i fix that

Is your user account one that has Administrator privileges? Did you try to start the Wamp Server using the 'Run as Administrator' option?

Stop Wamp Server again. Does it change the behaviour?

If not, there must be any other service running on port 80.