

With the non-printing characters displayed, select the line, as well as both the paragraph symbol above the line and the paragraph symbol below the line. There are a few other possible solutions.

Usually, that method will remove the line. (If Word inserts the line as a “bottom” paragraph border, deleting the paragraph symbol above the line should work if Word inserts the line as a “top” paragraph border, deleting the paragraph symbol below the line should work.) If not, try displaying the non-printing characters (click the paragraph symbol, located in the Paragraph group on the Home tab in Word 2007 and Word 2010 and located in the Standard toolbar in Word 20 alternatively, press Ctrl Shift * ) and then delete the paragraph symbol immediately above the line or the one immediately below the line. Sometimes, selecting the line and pressing the Delete key will remove the line.

However, if you’re not aware of the way that the feature works, you can end up with an unwanted border line that is somewhat tricky to delete. If you want to insert a horizontal line quickly, the feature can be very useful. The horizontal lines, which are paragraph borders, can appear if the “automatic borders” option is enabled in AutoCorrect and if you press one of the key combinations that triggers borders (three hyphens, three equal signs, or three underscore lines, followed immediately by the Enter key). Unfortunately, it can be difficult to figure out just how to remove them. In recent versions of Word, it is easy to create horizontal lines by accident.
