@mr64bit Haven't used Windows for a while, this is the first time I've noticed this. I've used Win10 plenty years ago, so I doubt it was introduced with its launch, but somewhere along the way.
@alyx By "forever", I mean it's been around almost as long as NTFS itself, so almost 30 years. The message has probably changed a bit over time, but I'm pretty sure you'd get that exact same message back to XP.