Sub Demo()
With ActiveDocument.Range
  With .Find
    .ClearFormatting
    .Replacement.ClearFormatting
    .Text = "^+"
    .Replacement.Text = ""
    .Forward = True
    .Format = False
    .MatchWildcards = False
    .Wrap = wdFindStop
    .Execute
  End With
  Do While .Find.Found = True
    With .Duplicate
      .Start = .Paragraphs.First.Range.Start
      .End = .End - 1
      .Font.Bold = True
    End With
    .Collapse wdCollapseEnd
    .Find.Execute
  Loop
End With
End Sub