solution
clear outlook secure temp folder
Step 1: Locate the folder
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The folder location is stored in the registry in the following key;
Outlook 97HKEY_CURRENT_USER\Software\Microsoft\Office\8.0\Outlook\Security
Outlook 98HKEY_CURRENT_USER\Software\Microsoft\Office\8.5\Outlook\Security
Outlook 2000HKEY_CURRENT_USER\Software\Microsoft\Office\9.0\Outlook\Security
Outlook 2002/XPHKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Security
Outlook 2003HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Security
Outlook 2007HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Security
Outlook 2010HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Security
Step 2: Get to the folder
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- Open the
OutlookSecureTempFolder
registry key from the location provided in Step 1. - Copy the path from the key.
- Open Explorer
- Paste the address in the Address Bar and press Enter
then delete the folder