When you search for Outlook items (for example, email messages) using the Start menu on Windows 7, your search results do not show any items. However, if you search for these same items inside Microsoft Outlook, your search returns the results that you want.
This problem occurs if the following data exists in the Windows registry:
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
To resolve this problem when you are not using Group Policy to deploy this setting, follow these steps to change the value of Start_SearchComm to 1.
On the Start menu click Run.
Type Regedit.exe in the Run box and then click OK.
Right-click Start_SearchComm and then click Modify.
Enter a Data value of 1 and then click OK.
Close Registry Editor.
If you are using Group Policy to deploy this setting, please discuss this situation with your domain administrator so that they can determine the best value for this setting in your organization.
This setting is commonly configured through Group Policy. It is configured through the Do not search communications setting under Start Menu and Taskbar in the Group Policy Editor. This setting is shown in the following figure.