Symptom
When you open Windows Explorer or Internet Explorer you may find that your Menu bar and/or Toolbar is missing.
Cause
corrupt values in the Windows Registry
Resolution
WARNING: 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 remove the corrupt value(s).
Close all open Internet Explorer and Windows Explorer windows. Start the Registry Editor (Click Start, Run and enter REGEDIT.EXE).
Go to the following Registry key:
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar
For Windows Explorer: In the right pane, locate the Explorer sub-key and open it. In the right pane, locate the ITBarLayout value. Right click this value and select Delete.
For Internet Explorer: In the right pane, locate the WebBrowser sub-key and open it. In the right pane, locate the ITBarLayout value. Right click this value and select Delete.
Quit Registry Editor.
Open the affected program (Windows Explorer or Internet Explorer) and verify that you're Menu bar/Toolbar has been restored. If not, close all open Windows Explorer and Internet Explorer Windows and repeat the above step. Then locate the ShellBrowser sub-key, open it and delete the ITBarLayout value there.