I need a key, or an app which responds to a key, that will stop all application and network processing immediately. And I mean, immediately, drop dead, stop processing Now.
The biggest waste of my time on my computer is waiting for a window to come back to life: a video to stop loading, a clicked window to raise, and so on. Trying to cancel this is no use; even the Task Manager won't work until whatever it is relaxes.
Somewhere, some part of the processor refuses to stop until it hits a timeout or gets an answer. I don't want to wait a minute for this every five minutes, and I don't want to turn my computer on and off, and I don't usually need more memory.
This is in my top ten critical problems with my computer.