WampServer

After installing WAMP its run ok. but when i restart my computer an error come

Unable to connect

Firefox can't establish a connection to the server at localhost.
* The site could be temporarily unavailable or too busy. Try again in a few
moments.

* If you are unable to load any pages, check your computer's network
connection.

* If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.

Remember in disable my firewall and iis also please help me out

you need to start apcahe first before you can access your server.