Hello, I'm running Outlook 2010 pro 32 bit and I'm having problems opening .msg files. I saved an email message from the inbox using Outlook Message Format - unicode (I have also tried to save it with non Unicode format). When I try to open the file while Outlook is open, I get the following error: The operation failed. The messaging interfaces have returned an unknown error. If the problem persists, restart Outlook. But if I close Outlook and then double click on the .msg file, I get the following error: "Cannot open Outlook." I am not running any add-ons and there are no google products installed. I have tried reinstalling Office several times and have checked the permissions to make sure THAT wasn't the problem. I am not sure what to do here. Please Help!!!!