Visual Studio 2010 package did not load correctly for uninstalled extesions

During visual studio startup I get lots of annoying dialogs about extensions package loading errors. All the extensions that fail to load are those I uninstalled. I checked all the places mentioned in this article (Bootstrapping of VS packages and VSIX extensions in VS2010) and none of the extensions I get error for is there. Is there somewhere else I can check? I would "just" like to see where visual studio finds these references and kindly delete them all :) I found this folder in the windows registry: ``` HKEY_USERS\S-1-5-21-3990449039-760197492-1239349315-1121\Software\Microsoft\VisualStudio\10.0_Config\Packages ``` It contains all the reference to extensions visual studio tries to load (mostly pointing to `HKEY_USERS\S-1-5-21-3990449039-760197492-1239349315-1121\Software\Microsoft\VisualStudio\10.0_Config\InstalledProducts` subfolders). I just renamed the folder of the extensions I did remove and I do not see load errors anymore. I'm sure this could cause some side effects so is anyone aware of a better way to avoid visual studio trying to load uninstalled extensions?