No, it's not weird https://support.microsoft.com/en-us/kb/3057448 "The update is not applicable to your computer" error when you install Windows updates Cause number 1: Update is superseded KB3020369 fully and directly supersede KB2533552 thus, if KB3020369 is installed, KB2533552 cann't be installed using the .msu file the workaround (that even WU use) is to use the inside .cab file to integrate the update online by dism tool: dism /online /add-package:Windows6.1-KB2533552-x64.cab