Have you used any of the "REMOVE" batches from jdeboeck found on this site? I have noticed similar behavior with the Update Rollup if I remove certain components that were updated in this update. It seems as though Windows Update may actually check for the presence of certain files to verify that the hotfixes are installed. Of course, if you download and install the hotfix, I don't think it will create files that don't already exist. So if you removed some file that Windows Update checks for, then install the update, the update will not recreate this file and thus Windows Update will still say you need to install the update. This is all just a theory of course, so someone else here may have the correct answer Matt