I run Windows 7 via Bootcamp. I recorded some audio into a Windows program called Goldwave. I selected a portion of the audio and was 1 button away from saving it. Before deciding to hit that button, I wanted to make sure that the filename I was going to save it as was spelled correctly. So, I opened Firefox and Googled the spelling. I was off by a letter. So now I just needed to go back to my Goldwave window, change the letter, and hit save. But where's my Goldwave window? It's gone. My Firefox window is still open, but Goldwave isn't. I figured it's hiding somewhere. I tried all sorts of view options, but to no avail. I opened Task Manager to see if Goldwave was still running, but it wasn't. I could re-open Goldwave, but my content was gone. It seems Firefox, or something else, totally bumped Goldwave off. Concerned about my unsaved audio recording, I quickly went into the temp folder. Since I've had Goldwave crash before (and by crash, I mean crash, not disappear altogether without any warning or dialogue box whatsoever), I knew my audio recording would, in some shape or form, be preserved in the temp folder. But nope. The only thing there was a tiny fragment of the recording (the fragment was a selection I had 'copied' to the clipboard in the editing process). There was no sign of anything else.
I've never ever seen a program get terminated like this before. There wasn't even a warning sign. Goldwave simply disappeared, with my recording too.