How to Stop Word from Opening Every Document Separately?

This feature is hard-wired into Word. So, though you can’t directly stop it, i.e. through the menu options, we have some macros that work around it.

Macro to Update all Fields in a Document

The code is as follows:
Sub UpdateAll()
   Dim oStory As Range
   Dim oField As Field
   On Error Resume Next
For Each oStory In ActiveDocument.StoryRanges
For Each oField In oStory.Fields
oField.Update

Next oField
Next oStory
On Error GoTo 0
End Sub