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Windows 7: Outlook distrusts Microsoft's own add-in certificate?

07 Aug 2016   #1

Windows 7 Home Premium x64
Outlook distrusts Microsoft's own add-in certificate?

On re-opening Outlook 2016 I got the pop-up shown in attachment.
Certificate is signed by Microsoft itself !
There were a few more including a couple signed by Kaspersky (Internet Security).
What the heck is going on here?
I clicked to trust them all.
Did I do the right thing?

Attached Files
File Type: docx NOTICE.docx (51.8 KB, 14 views)
My System SpecsSystem Spec

 Outlook distrusts Microsoft's own add-in certificate?

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