Unable to open email attachment in Microsoft Outlook 2010

Error Message: Cannot create file: < File Name >. Right-click the folder you want to create the file in, and then click Properties on the shortcut menu to check your permissions for the folder.

Fix

Open Regedit and
search “OutlookSecureTempFolder”

Copy the path from
the Key, and paste into Explorer.

REMEMBER TO DO
LOCALHOST\C$

 Delete all files in this temp folder.