I'd like to add a PC as an Authorized device to play iTunes. I'm at my limit of 5 so I'd like to de-authorize one or more. It doesn't give me the option to choose which. Only to ask if I'd like to de-authorize all.
There is no option to see what the devices are. The only way to deauthorize a specific device is to do it from that device. That typically means that you'll need to deauthorize all and then reauthorize any devices you still have and want to use.
Also see: Authorize or deauthorize your computer for Apple ID purchases - Apple Support
See also Authorization vs. association - Apple Community. Authorization only applies to computers.
tt2
Trying to find the 5 authorized devices in my account to play iTunes. All it offers me is 'de-authorize all'.
