This won't affect any existing documents, only new ones.This Microsoft Word Tips & Microsoft Word Help page will show you how you can convert fixed reference notes located at the end of a document into dynamic document footnotes (or endnotes). The next time you create a document based on that template, the endnote reference numbers will be formatted as Roman numerals (assuming you selected a Roman numeral format in step 3). (This is important so that Word actually has to 'use' the settings you made.) Insert a dummy endnote and then delete it.Click OK to close the Footnote and Endnote dialog box.Using the Number Format drop-down list, select the numbering format you want to use.Word displays the Footnote and Endnote dialog box. Click the small icon at the lower-right corner of the Footnotes group.Display the References tab of the ribbon.(Just search for Normal.dotx, Normal.dotm, or some variation of these names.) Load the template directly into Word and then follow these steps: The location of the Normal template will vary from system to system, but you can use the Windows search feature to locate it. In order to make a change to the Normal template you need to load it directly. (In other words, changing the template is how you change many of Word's defaults-including endnote numbering styles.)

In most cases, this means changing the Normal template because most new documents are based, automatically, on settings stored in the Normal template. It is possible to change the default, but the way you do it is to change the template on which new documents are based. While this can be done manually in the Insert Endnote dialog box, that takes several steps and a change to the default would be much easier and faster. Ken wonders if it is possible to change the default numbering format for endnotes from lowercase Roman numerals (i, ii, etc.) to uppercase Roman numerals (I, II, etc.).

Fix microsoft word endnote numbering