I am running Windows 7 Home Premium 64bit on four machines, but only one of them displays the problem I am about to describe. Microsoft updates are installed, and they show in the update history, and Secunia PSI reports no missing security updates. However, in Control Panel, Programs and Features, click on "View Installed Updates", I am told that "no updates are installed on this computer". This is the location where one would be able to uninstall an update if necessary, but, again, no updates are listed there. Others have reported this problem on the web going back to Vista and XP, but I found no solution. Does anyone have a suggestion as to what is causing this?