Re not seeing all the voices, this is known issue with 64 bit windows (and has been for several years...). You can run the alt control panel applet to get at the other ones,
Windows\sysWOW64\speech\SpeechUX\SAPI.cpl (or whatever the path is on your version of windows)
This will let you set the default voice to something other than Anna, hopefully.
(here's a TechNet post from
2009 about this exact thing (the answer, not the question)
https://social.technet.microsoft.com...set-as-default
If you search around, there's plenty on the topic, but no real fix other than "use the old control panel applet".