This post is for my friend Sue and all the people that use Microsoft Word and want to add to the footer of their documents a reminder to the file location and the timestamp when the document was last saved. This can be achieved using a small VBA macro, and here is how to do it. 

Copy the content in the box below

Sub FileSaveAs()

    Dialogs(wdDialogFileSaveAs).Show
    
    Dim i As Long
    Dim ThisPath As String
    Dim pName As String
    Dim TextInFooter As String
    Dim FullName As String

    ThisPath = ActiveDocument.Path
    pName = ActiveDocument.Name
    FullName = ThisPath & "\" & pName
    TextInFooter = "This file was saved in: " & FullName & " on the " & Now

    For i = 1 To ActiveDocument.Sections.Count
        With ActiveDocument.Sections(i)
            .Footers(wdHeaderFooterPrimary).Range.Text = TextInFooter
        End With
    Next
End Sub

To save the macro:

1. Open an existing word document, then press ALT+F11.
2. Right-Click on Normal in the file explorer in the left hand side panel. Click on INSERT, then click on MODULE.
3. Copy the text at the bottom of this email and paste it in the empty window that opens on the top-right panel.
4. Click on SaveNormal.

If you want to save a document without changing the footer, you either press the save button or CTRL+S. These will not run the macro.

If you want to save a document with path+date&time in the footer, you either press FILE -> SaveAs button or F12. These will run the macro.

Remember, you have to save the macro only once. After that, the macro will work on any new or existing document on your computer. However if you change computer or reset it, you will need to re-save the macro.