Not quite sure this counts as a bug, but when I change the volume of my computer with my keyboard, my computer goes to the desktop for a millisecond and immediately goes back to Minecraft. This all happens so fast it looks like the screen is just blinking black once.

Main reason I'm asking here is because this glitch is only happening in Minecraft, and no where else. Anyone know how to fix this?

Also, this only happens when MC is fullscreened.