When I try to open admin Page of Magento in Wamp server it will give me 404 Error.
Yup I got the Solution.
You have to just use below url and you can access you admin panel of Magento.
this should work. After that configure the rewrites in your server (enable mod_rewrite), so that everything works as intended.
The another solution is that you have to enable SEO setting for that follow below steps.
Step 1 : Open your Magento admin panel.
Step 2 : Go to System >> Configuration and click on that.
Step 3 : Then go to the Configuration >> Web >> Search Engines Optimization
Step 4 : Make Use Web Server Rewrites to Yes.
Hope you got the proper Solutions.