I have recently downloaded ArcGIS_Desktop_104_149411 and ArcGISPro_5023_149395 Trial versions. After I install them, both apps state that I need an update " A service pack is required on this Operating system. See http://support.esri.com for more information " When I go to the site there are all kinds of updates so I download the one for Desktop and try to install and it says " The upgrade patch cannot be installed by the Windows Installer service because the program to be upgraded may be missing, or the upgrade patch may update a different version of the program. Verify that the program to be upgraded exists on your computer and that you have the correct upgrade patch. " What do I need to do?