title: Issues installing tools for Windows 10 Universal apps after Windows 10 upgrade
body: <p>I installed Visual Studio 2015 on my machine before I upgraded to Windows 10 a few days ago. I'm having a really hard time installing W10 universal apps. At first, the option for universal apps wasn't listed under project templates. After a few restarts and back and forth, the option was there, the installation of the tools took several hours (I'm on an SSD so installations usually happens within a few minutes). Once it got installed, I either got an error message about loading assemblies, or that the project is not compatible with my version of Visual Studio (I'm running Visual Studio 2015 enterprise). </p>
  
  <p>I have tried repairing and uninstalling then reinstalling/repairing VS, where the result is usually that the situation gets somewhat worse. Now, only test projects are listed under the Windows UAP section (Not Universal). I have also tried both uninstalling and reinstalling the Windows 10 SDK separately with Visual Studio without any effect. Is there a way to perform a complete clean uninstall of Visual Studio 2015 without performing a reinstall of my OS or is there some cache that I should clear?</p>