Things aren’t good when Windows gets so mixed up that different components start fighting with each other, and accusing each other of being security threats. Here we’ve got DEP shutting down Explorer:
Fortunately, while just about everything else had crashed, Task Manager still worked, so I was able to run Paint.net and save this screendump.
For what it’s worth, I think an unstable non-MS EXE was what did the damage, so Windows isn’t entirely to blame. Still, I can’t help wondering if Linux has these kinds of issues.
All was well again after a reboot, natch.