title: How to manually uninstall a Visual Studio 2010 extension?
body: <p>So I got prompted to download the latest NuGet Package Manager in VS2010.
  All previous updates (including this) has failed with:<br>
  <code>VSIXInstaller.SignatureMismatchException: The installed version of 'NuGet Package Manager' is signed, but the update version has an invalid signature. Therefore, Extension Manager cannot install the update.</code></p>
  
  <p>Which, in itself has been going on for some time now, and <a href="http://visualstudiogallery.msdn.microsoft.com/27077b70-9dad-4c64-adcf-c7cf6bc9970c/">they still haven't fixed it (look in Q&amp;A)</a>.  </p>
  
  <p>Ok, fine, previously I could simply uninstall the NuGet extension and install the latest. However, this time, both the <code>Disable</code> and <code>Uninstall</code> buttons are disabled.
  So I can't uninstall and I can't upgrade.    </p>
  
  <p>Catch22.  </p>
  
  <p>How can I manually remove the NuGet extension from Visual Studio?<br>
  What files/folders/reg entries do I have to kill to get rid of NuGet?</p>