Before developing a windows phone app, you need to Make sure you've downloaded and installed the Windows Phone SDK from here (http://go.microsoft.com/fwlink/p/?LinkId=259416), then from Windows Phone templates, select the Windows Phone App template. In the New Windows Phone Application dialog box, select Windows Phone OS 8.0 for the Target Windows Phone OS Version. Downloaded SDK contains - Microsoft Visual Studio Express 2012 for Windows Phone - Windows Phone Emulators - Microsoft Expression Blend for Windows Phone - Microsoft Team Explorer - XNA Game Studio see some good links below https://blogs.msdn.microsoft.com/visualstudio/2012/10/30/introducing-windows-phone-sdk-8-0/ https://msdn.microsoft.com/en-in/library/windows/apps/ff630878(v=vs.105).aspx https://msdn.microsoft.com/en-in/library/windows/apps/ff402526(v=vs.105).aspx Thanks Koolprasd2003 Editor, DotNetSpider MVM Microsoft MVP 2014 [ASP.NET/IIS]
There are lots of SDK's and tools available for windows app programming through Visual Studio. You must choose one of them and try to focus on programming with the same. I preferred developing apps using XAMARIN. I have attached installation document which will step by step guide you to set up a proper environment on your machine regarding all necessary SDK's for XAMARIN. I think it will be helpful for you.
There are many SDKs available whihc you can find if you search in google.
But my advice is, sine you are developing Mobile application you always have to use latest version and it should be 2013. http://developer.telerik.com/featured/5-ways-to-build-mobile-apps-with-visual-studio/ http://stackoverflow.com/questions/18099572/windows-phone-8-template-in-visual-studio-2013-preview Regards, Asheej T K Microsoft MVP[ASP.NET/IIS] DotNetSpider MVM