Ugh, more random, unexpected computer problems.
So I turn on my computer this morning and get the BSOD. Don't know how, don't know why, but I was prompted to restart my computer so Windows Repair could search for and repair whatever the problem(s) was. After that, everything seemed normal, except both Opera and Chrome had error messages when launching them: Opera had a corrupted extension that had to be uninstalled and re-installed, and Chrome seemed to think that it crashed and closed unexpectedly as I was cleaning my history and closing it last night.
I'm starting to think they design computers to intentionally start breaking down after six years or so.