Thanx, kemical, but none of those tips worked for me. I think it's because this is a desktop computer (I didn't think of pointing that out, I guess). Some of those special keys don't appear on my keyboard.
So, I'm still looking for a solution. I definitely appreciate your effort on my behalf and hope, some day, to be able to repay it.
Your are using the latest release of Windows 10? Not being a pedant, but it is called Flight mode now - Change of name only. Microsoft love doing that.
I haven't read the li8nk, but this "bug" seems to be associated with the use of the manual wireless switch on some computers. If you have one, which is ON, try turning it off and then on. Also try the opposite. Dumb, but it seems to work for many.
I have no idea what Airplane (Flight) Mode controls except wi-fi. Anything else, Kid45?
EDIT: In fact, I don't know how to turn wi-fi off, either. It's been ten years since I last flew and I guess lots has changed along with less elbow-room and more extra fees. Hell, it's a miracle they haven't thought of putting a lock on the toilet door requiring a dollar bill to unlock it!