Silent Computer

How did my computer come back from the computer hospital with a new C: drive and new operating system and no ability to put sound through my headphones?

I am really having a death-by-1,000-papercuts week. Except for hiking and cooking and, to a (much) lesser extent, writing; those three things are awesome, very good, and okay, respectively. Feels like everything else is in a state of uncomfortable chaos with a barrage of minor annoyances. Well, no educational video tutorials for me tonight.