When I do an in place upgrade or version change of windows I call up a cmd window, type "setup /pkey defer" to not have to put in the serial number. When I search for setup.exe command line switches none have the "defer" option listed, not even Microsoft. So wonder what other switches and or options are there that are not documented? /PKey Supplies Windows Setup with the specific product key. Syntax /PKey <product key> Examples setup.exe /auto upgrade /pkey xxxxx-xxxxx-xxxxx-xxxxx-xxxxx Where does the defer co
https://forums.mydigitallife.net/posts/1418703/ see Optional parameters this is from 2019-ish some new switches are added since then