You know that warning that pops up every time you want to install a new app in Windows? The one that sometimes prevents you from doing it when an app seems a little sketchy? Yeah, it’s busted… and it’s been busted—for at least six years—according to recent security research. Get Windows 11 Pro for cheap Windows 11 ProPrice When Reviewed: 199.99 Best Prices Today: $59 at PCWorld Store – Win 11 Pro Upgrade Only | $79.99 at PCWorld Software Store Windows Smart App Control (as it’s called in Windows 11) or Windows SmartScreen (as it’s known in Windows 8 and Windows 10) is designed to put up an ext…