I've been out and unable to respond, but thanks. I ticked the "Stop VSS", "Restore Point" and "Hibernation Files" settings. There are no exclusions. I safe started to "C" prompt, defragged free space then "C:" drive. Rebooted normally. Analysis results: 18 fragmented files (57.5 mb), 139 Total fragments, 0% fragmentation. The fragmented files appear to be system volume information. There are several "rows" of free space between two groups of data. I'm thinking that may be normal. I appreciate your response. Thank you for the help. DrM