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Inbox Repair do repair large sized files

Scanpst do scan missing PST files

Efficient software for all saved PST files

Perfectly manages entire damaged PST well.


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System Requirements

Processor : Pentium Class or High Class Procesors

Operating System : Windows (Windows 2000, XP, Vista, 2003) and Macintosh (Mac 10.4 x tiger, 10.3.9 Panther, and 10.5 x leopard)

Memory : Minimum 256 MB (512 MB recommended)

Hard Disk : 50 MB of free disk space

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Latest Articles

While Microsoft Outlook email client application, you may get some strange or unexpected error messages. Like If you trying to insert another mailbox or pst file in your Outlook Folders and then try to retrieve Outlook folder such as contacts folder in Microsoft Outlook.

You may get following error messages :

  • “Unable to expand the folder. The set of folders could not be opened.”

  • If you are using the MS Outlook 2003 or later version, your Outlook may occur same error message in different way like:

“Unable to expand the folder. Microsoft Office Outlook could not access the specified folder location.”


Download: Inbox Repair Tool! is a complete application for repairing damaged PST files.


The reason behind this problem, if you doesn't have set the Outlook "Folder Visible" option for your second mailbox. This error also may take place in Outlook even if you doesn't have currently assigned proper permissions access on your Outlook folder which you want to share. This error not only cause due to these above reason. There may be another possibilities behind Unable to expand the folder error in Outlook.


In order to resolve this problem in Outlook manually you have to select and turn on Folder visible option for your mailbox which contains the Outlook which you want to share.

Steps to select the Folder Visible option in Outlook:

  • Right click on your Mailbox
  • Click on Folders list for Properties
  • Select the check box in the Permissions area for Folder visible
  • Then click OK button

These above steps will only helps you to resolve Unable to expand the folder error in Outlook if the “Folder Visible’ option is not enabled in your Outlook application. If this error message is again and again popping up in Outlook due to this reasons. In order to fix this problem you can use an advanced Outlook inbox repair tool which is especially designed to fix Outlook errors. This can easily fix out all common error in Outlook.