If I don't like what a computer is doing, I will frequently just yank the plug, pull the battery, flip the circuit breaker, and fuck the rest.
All this buffering and fault tolerance is bullshit at the consumer level. If the disk's file table gets fucked up, then let it burn.
I'll format the disk and re-install your stupid operating system as I see fit, whenever I want, and keep my actual data safe and sound far away from someone else's stupid hung process, until it produces actual results that I can copy into place, whenever appropriate.
These are lessons I learned throughout the late 90's, in the face of countless blue screens, before migrating to linux.
It is now safe to turn off your computer.