UPDATED March 19, 2018: Microsoft is now aware of this issue and has provided a workaround while developing a full fix.
One of the updates delivered for Patch Tuesday seems to be causing fits for Microsoft Word 2016. After installing, customers have reported they can’t open Word documents by double-clicking on them.
So far, uninstalling the update seems to be the most current fix.
We’ll be tracking updates to this issue, so stay tuned.
Microsoft forums thread: KB4011730 breaks Word 2016
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