KUC and MacRip sometimes don't go together. For me the same version of KUC shows different files to download in the same PC but different OS(win 7 sp1 ultimate 32 bit). One with almost 400 updates and the other with just SP1. KUC showed it is missing update KB2829589. But it is for WINDOWS SERVER 2008 R2 ??????. I currently downloads all MacRip updates and checks with KUC for any Missing files(Usually less than 20). If found I google them using the KB number.If it is a needed one, download it and integrate to the image. Googgling all the updates may not be a practical but its the only way to prevent downloading and installing unnecessary updates KUC has a lot of database issues recently.