Search Companion Starts If You Double-Click a Folder


RESOLUTIONWARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.To resolve this problem, edit the registry to set the value data for the Default string value in the registry keys that are described in the "Cause" section of this article to none:

Start Registry Editor (Regedt32.exe).

Locate and then click the Default value under the following keys in the registry if this problem occurs with folders:

HKEY_CLASSES_ROOT\Directory\shell

If this problem occurs with drives:
HKEY_CLASSES_ROOT\Drive\shell

Click Modify on the Edit menu.

Type none in the Value data box, and then click OK.
Quit Registry Editor.


http://support.microsoft.com/?id=kb;en-us;321186