This article was previously published under Q321186
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If you double-click a drive or folder, Search Companion may start and the drive or folder may not open. If you configure settings for other actions that are associated with drives or file folders (for example, Open Command Window Here or Print Directory Listing), Windows may perform one of these actions instead of starting Search Companion.
NOTE: If you configure the Single-click to open an item (point to select) setting in Windows, this problem may occur if you single-click a drive or folder.
This problem occurs when you open the Edit File Type dialog box for the Drive or File Folder registered file types. For example, this problem occurs for folders if you complete the following procedure:
Open the folder, and then click Folder Options on the Tools menu.
Click File Folder in the Register file types list, and then click Advanced.
After you perform this procedure, the None setting is removed from the value data for the Default string value in the following registry key:
NOTE: This problem occurs even if you do not create a new action, edit existing actions, or change the default action in the Edit File Type dialog box.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows