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

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

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Stop Wamp Server again. Does it change the behaviour?

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