When you open a new app (like Settings, Run dialog, or a UWP app), Windows asks: Which keyboard layout should I start with? Without an override, it guesses based on your system language or the last used layout globally—leading to chaos. Navigate to: Settings > Time & Language > Typing > Advanced keyboard settings You’ll see a dropdown labeled: Override for default input method Here’s the technical truth: This setting defines the input method loaded before any application starts and for non-interactive Windows components .
Find GUIDs under:
Get-WinDefaultInputMethodOverride Set-WinDefaultInputMethodOverride -InputTip "0409:00000409" The override feature is a vestige of Windows 7/8 . Back then, per-window input tracking was optional. Modern UWP and WinUI 3 apps handle input independently. Microsoft kept the setting for legacy compatibility, but its scope has shrunk. When you open a new app (like Settings,