Outlook 2003 or Outlook 2007 not showing Embedded Images

I have some clients that are experiencing problems opening up emails with attachments but couldn’t see the attachments or images.

One solution is to delete a registry key for Outlook

Outlook 2003
HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Security
Value Name: OutlookSecureTempFolder

Outlook 2007
HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Security
Value Name: OutlookSecureTempFolder

Another solution is to empty out the files inside the ‘OutlookSecureTempFolder’ folder.