Frequently Asked Questions (FAQs)
Q. What if I uninstall my older version of ArcGIS prior to uninstalling the LFDAT tool?
Try installing the newer LFDAT over the existing LFDAT once you get ArcGIS upgraded. If this doesn't work, try downloading and running this utility prior to installing the latest version of LFDAT
http://majorgeeks.com/download.php?det=4459