Can't Save Anything

I just downloaded Audacity, and right out of the gate, it won’t let me save anything. Not MP3, not WAV, not OGG, not AUP. If I try to create a new file it tells me that it can’t be found. If I try to overwrite an existing file, it tells me that it is unable to do so.
It also gave me a rather cryptic message during the installation, but I didn’t think anything of it at the time since Audacity seemed to load fine after that.

Windows 10 Home 1803 Build 17134.228
Audacity 2.2.2
doc.PNG
gyu.PNG
kjh.PNG
cantr.PNG

The rest of the errors…
aufail.PNG
balkls.PNG
unav.PNG