Where does Outlook Store Open-Attachment temporarily?

Problem

You have an email with an Excel attachment and you start working on that file and save it and then close Excel and the email. Then you realise that where is the file located?

Solution

You may need to check in the registry to see where the temporarily file are stored.

To know the path specific to your environment, see in registry by going to Start and under search type in regedit and hit enter.

Browse the registry as followed:

For Outlook 2010

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Security

or

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\14.0\Outlook\Security\OutlookSecureTempFolder

For Outlook 2007

HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Security

or

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Outlook\Security

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