Default Mail Client / Won't Index Outlook 2013

Update (4/7/15 7pm EST): I deleted the Data Sources associated with Outlook and made it worse. Now all my past emails have been deleted from the index. I tried to add the Outlook data sources back and I get the same message. As far as I can tell, I have made this mail client the default. What else can I check?

Thanks,

Pete

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I just upgraded to Office 2013, including Outlook. When launching X1, I received this message:

"Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client."

I have gone into the Control Panel and made Outlook the default but I am still getting the error message. (Also rebooted).

X1 Search 8.3.2.1 build 5003b 64-bit.

Any help?

thanks,

Pete

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