The bootstrap popover is not showing up my page

Here is my HTML:

<button type="button" class="btn btn-lg btn-danger" 
        data-toggle="popover" title="Popover title"
        data-content="And here's some amazing content. It's very engaging. Right?">
     Click to toggle popover
</button>

Here are all the js and css files I've added:

@Styles.Render("~/Content/css")
@Styles.Render("~/Content/bootstrap.min.css")
@Styles.Render("~/Content/bootstrap.css")
@Styles.Render("~/Content/bootstrap-theme.css")
@Styles.Render("~/Content/css/default.css")

@Scripts.Render("~/Scripts/jquery-2.1.1.js")
@Scripts.Render("~/Scripts/jquery.unobtrusive-ajax.js")
@Scripts.Render("~/bundles/modernizr")
@Scripts.Render("~/Scripts/bootstrap.js")

Can someone tell me where is the problem?

PS: Is there a way to get the popover to work without having to write any script code?

From the Docs on Popovers:

Opt-in functionality:
For performance reasons, the Tooltip and Popover data-apis are opt-in, meaning you must initialize them yourself.

So you must call .popover() manually in JavaScript like this:

<!-- language: lang-js -->
$("[data-toggle=popover]").popover();

Or you can use whatever selector you want

Here's an example using StackSnippets.

<!-- begin snippet: js hide: true --> <!-- language: lang-js -->
$("[data-toggle=popover]").popover();
<!-- language: lang-css -->
body {
  padding: 50px;
}
<!-- language: lang-html -->
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet"/>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>


<button type="button" class="btn btn-lg btn-danger" 
        data-toggle="popover" title="Popover title" 
        data-content="And here's some amazing content. It's very engaging. Right?">
  Click to toggle popover
</button>
<!-- end snippet -->

Note: This is similar to the answer to Bootstrap Tooltip Not Showing Up