Why: The Search Cannot Be Completed. The Connection to Microsoft Exchange is Unavailable.

If you attempt to search your Outlook global address list for a user or email address, you may receive an error about being unable to complete the search.

The search cannot be completed. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.

If your Microsoft Outlook Exchange server is not down (confirm this with your systems administrator), then try the following steps below.

1. Delete your Outlook profile and re-create it.

2. Ensure the Microsoft Exchange Address Book service is running on your Exchange server.

3. Try to repair your Outlook installation in Windows control panel.