title: What installed Windows Kits
body: <p>I have a directory "C:\Program Files (x86)\Windows Kits". An exe in the subfolder of this folder is being called when I build a winPhone App. I did not install this specifically. How was this installed on my system? I am guessing maybe it came with windows install or some visual studio install. How do I update this?
  I have 8.0, 8.1 and 10 as subfolders too. I think I can manually update each version from here. <a href="https://developer.microsoft.com/en-us/windows/downloads/sdk-archive" rel="nofollow noreferrer">https://developer.microsoft.com/en-us/windows/downloads/sdk-archive</a></p>
  
  <p>Just trying to figure out how these are installed and how are they supposed to be upgraded. </p>