Does anyone else have this problem?
The full message in the status bar says,
Loading toolbox content from package ‘Microsoft.VisualStudio.IDE.ToolboxControlsInstaller.ToolboxInstallerPackage’ {D766DAA8-F81E-4621-9184-F21C7F389796}
This usually happens whenever I open a xaml file and VS sits there, unresponsive, for about 2 minutes.
This usually happens when opening the Toolbox (CTRL-ALT-X), or moving the mouse over the Toolbox icon (which appears on the left).
According to this Connect issue report, there’s a workaround to be done, which may fix the issue:
He said he simply removed the registry key under:
and the problem went away. Read more on that link.