Word opened the document in protected view

You either downloaded the file from the internet or opened it from an email. By default, Word displays the file in protected view. 

Solution

Click Enable Editing in the yellow bar at the top of Word.

If the file is saved on a network drive or server, add the file path to the list of trusted locations in Word's Trust Center:

File > Options > Trust Center > Trust Center Settings > Trusted Locations > Add new location

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