Remove (Disable) ReturnUrl functionality from FormsAuthentication in ASP.Net C#

Hi Everyone

I developed an application using asp.net Webforms and Same application in MVC, I used Forms Authentication like bellow

 <authentication mode="Forms">
      <forms loginUrl="Login/Create" defaultUrl="HomePage/Index">
      </forms>
    </authentication>
    <authorization>
      <deny users="?"/>
    </authorization>
  </system.web>

When i run the application the url will become like this

http://localhost:2817/Login/Create?ReturnUrl=%2f

i dont know why this adding ReturnUrl=%2f

Even after entering username and password again its redirect to login page like bellow

http://localhost:2817/

Again i have to enter user name and password then it will redirect to Home page/ Home Controller and work fine.

This problem am facing even development, Deployment to Local IIS and Even in Production server as well.

Please solve my issue.. Thank you in advance