In the Program and Features, first select the VS 2015 and then click on “Change”. Once you click on Program and features you can see the below screen. (If Using Windows 7 images may vary because I am using Windows 10)
I will explain to you what the Universal App is in my next article/blog, first, let's see how to Add/Install the Xamarin in Installed Visual Studio 2015. Visual Studio -> Tools -> Xamarin -> Android Settings.
I will suggest you use Windows 10 because Xamarin allows you to create the Universal App in Windows 10 only. If you want to use Xamarin's Mono for Android in Visual Studio and want to Visual Studio detect your android sdk, go to. In my case, I am using the Windows 10 Operating System and Visual Studio 2015 Enterprise edition. Xamarin Studio works fine with 32-bit versions of Windows XP/7/8. The actual developer of the software is Xamarin. The following versions: 5.5, 5.4 and 5.3 are the most frequently downloaded ones by the program users. Our built-in antivirus scanned this download and rated it as 100 safe. Please close all the running instances of Visual Studio 2015. Download Xamarin Studio 5.7.2.7 from our website for free.
If you have already installed the Visual Studio 2015 and want to Install Xamarin then please follow these steps. It allows one to create apps that easily run across multiple platforms.