windows can, annoyingly, store info about a failed attempt to attach a gadget, & give you trouble ever after for that. It happened to me with my wife's old Samsung phone. I had fail after fail trying to set up their Keis software in order to copy files. eventually, I was able to do it on a different PC, but on this one, even after clearing everything relevant, and following the exact same steps, I continued to get device not recognised ( & it was not a cables or ports issue - it was windows' "memory" )
so - worst case- you may be doomed for wanting that device to work with that PC, unless you go through the trauma of an O/S re-install. But try going to device manager & removing anything that has a warning or exclamation mark against it. searching for a driver obtained from the device, in order to zap it, is harder, but you may be able to search windows drivers folders by date & trace it that way.
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