MVC5 already comes with Bootstrap and LESS by default, but unfortunately it doesn’t come with Bootstrap LESS files to custom them in case you want to do that. Luckily Osowicki created this template that you can install in your Visual Studio and use to have all of it already prepared on a clean project.
Just open Visual Studio > New Project > Online (it’s at the very bottom) > Templates. You should find it here with the name “ASP.Net MVC5 with Bootstrap 3.1.1 LESS” and an “ok” icon showing you already installed it. Now select it and click Ok to create your new MVC5 project with Bootstrap LESS files ready to go 🙂