Active Desktop Recovery
  Microsoft Windows has experienced an unexpected error. As a precaution, your Active Desktop has been turned off. To restore the Active Desktop, use the following troubleshooting tips:
Did your browser stop working, or did you restart your computer without shutting it down first? If so, click:
Did you recently add a new item to your Active Desktop? If so:
  1. Right-click the desktop to open the Desktop menu, point to Active Desktop, click Customize my Desktop.
2. Clear the check box for the item you added most recently.
Do you want to turn off your Active Desktop? If so:
  Right-click the desktop, point to Active Desktop, and then click Show Web Content.