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Microsoft-Windows-Embedded-KeyboardFilterService

Last Updated: 12/12/2016

You can use KeyboardFilterService in to suppress undesirable key presses or key combinations. Normally, a customer can use certain Windows key combinations like Ctrl+Alt+Delete or Ctrl+Shift+Tab to alter the operation of a device by locking the screen or using Task Manager to close a running application. This may not be desirable if your device is intended for a dedicated purpose. However, you can use KeyboardFilterService to suppress any key press or key combination that causes an undesirable system behavior.

Child elements

TopicDescription

Alt

Blocks both Alt keys.

AltF4

Blocks the Alt+F4 key combination used to close applications.

AltSpace

Blocks the Alt+Space key combination used to open the shortcut menu for the active window.

AltTab

Blocks the Alt+Tab key combination used to switch tasks. Also blocks the Alt+Shift+Tab key combination.

AltWin

Blocks all keyboard combinations beginning with Alt + Windows logo key, for example Alt + Win + S.

BrowserBack

Blocks the Browser Back key.

BrowserFavorites

Blocks the Browser Favorites key.

BrowserForward

Blocks the Browser Forward key.

BrowserHome

Blocks the Browser Home key.

BrowserRefresh

Blocks the Browser Refresh key.

BrowserSearch

Blocks the Browser Search key.

BrowserStop

Blocks the Browser Stop key.

ControlAltDelete

Blocks the Control+Alt+Delete key combination used to open the Windows Security screen.

ControlEscape

Blocks the Control+Escape key combination used to open the Start screen.

ControlTab

Blocks the Control+Tab key combination used to switch windows.

ControlWindowsF

Blocks the Control+Windows logo key+F key combination used to open the Find Computers dialog box.

Ctrl

Blocks both Ctrl keys.

CtrlF4

Blocks the Control+F4 key combination used to close the active window.

CtrlWin

Blocks the Ctrl + Windows logo key keyboard combination.

CustomFilters

Blocks the list of custom keys.

CustomScancodes

Blocks the list of custom scan codes.

DisableKeyboardFilterForAdministrators

Disables the keyboard filter for administrators.

Escape

Blocks the Escape key.

F21

Blocks the F21 key.

ForceOffAccessibility

Disables all Ease of Access features and prevents users from enabling them.

LaunchApp1

Blocks the Start Application 1 key.

LaunchApp2

Blocks the Start Application 1 key.

LaunchMail

Blocks the Start Mail key.

LaunchMediaSelect

Blocks the Media Select key.

LeftShiftLeftAltNumLock

Blocks the Left Shift+Left Alt+Num Lock key combination used to open the Mouse Keys dialog box.

LeftShiftLeftAltPrintScreen

Blocks the Left Shift+Left Alt+Print Screen key combination used to open the High Contrast dialog box.

MediaNext

Blocks the Next Track key.

MediaPlayPause

Blocks the Play/Pause Media key.

MediaPrev

Blocks the Previous Track key.

MediaStop

Blocks the Stop media key.

Shift

Blocks both Shift keys.

ShiftControlEscape

Blocks the Shift+Control+Escape key combination used to open Task Manager.

ShiftWin

Blocks the Shift + Windows logo key.

VolumeDown

Blocks the Volume Down key.

VolumeMute

Blocks the Volume Mute key.

VolumeUp

Blocks the Volume Up key.

Windows

Blocks both Windows logo keys.

WindowsB

Blocks the Windows logo key+B key combination used to set focus in the Notification area.

WindowsBreak

Blocks the Windows logo key+Break key combination used to open the System dialog box.

WindowsC

Blocks the Windows logo key+C key combination used to open charms.

WindowsComma

Blocks the Windows logo key+Comma key combination used to peek at the desktop.

WindowsD

Blocks the Windows logo key+D key combination used to show the desktop.

WindowsDown

Blocks the Windows logo key+Down Arrow key combination used to minimize the active window.

WindowsE

Blocks the Windows logo key+E key combination used to open Windows Explorer.

WindowsEnter

Blocks the Windows logo key+Enter key combination used to start Narrator.

WindowsEscape

Blocks the Windows logo key+Esc key combination used to close the Magnifier application.

WindowsF

Blocks the Windows logo key+F key combination used to open Search.

WindowsF1

Blocks the Windows logo key+F1 key combination used to open Windows Help.

WindowsH

Blocks the Windows logo key+H key combination used to open the Share charm.

WindowsHome

Blocks the Windows logo key+Home key combination used to minimize or restore all inactive windows.

WindowsI

Blocks the Windows logo key+I key combination used to open the Settings charm.

WindowsJ

Blocks the Windows logo key+J key combination used to swap between snapped and filled applications.

WindowsK

Blocks the Windows logo key+K key combination used to open the Connect charm.

WindowsL

Blocks the Windows logo key+L key combination used to lock the device.

WindowsLeft

Blocks the Windows logo key+Left Arrow key combination used to snap the active window to the left half of the screen.

WindowsM

Blocks the Windows logo key+M key combination used to minimize all windows.

WindowsMinus

Blocks the Windows logo key+Minus key combination used to zoom out.

WindowsO

Blocks the Windows logo key+O key combination used to lock device orientation.

WindowsP

Blocks the Windows logo key+P key combination used to cycle through Presentation Mode. Also blocks the Windows logo key+Shift+P and Windows logo key+Ctrl+P key combinations.

WindowsPageDown

Blocks the Windows logo key+Page Down key combination used to move a Windows Store app to the right monitor.

WindowsPageUp

Blocks the Windows logo key+Page Up key combination used to move a Windows Store app to the left monitor.

WindowsPeriod

Blocks the Windows logo key+Period key combination used to snap the current screen to the left or right gutter. Also blocks the Windows logo key+Shift+Period key combinations.

WindowsPlus

Blocks the Windows logo key+Plus key combination used to zoom in.

WindowsQ

Blocks the Windows logo key+Q key combination used to open the Search charm.

WindowsR

Blocks the Windows logo key+R key combination used to open the Run dialog box.

WindowsRight

Blocks the Windows logo key+Right Arrow key combination used to snap the active windows to the right half of the screen.

WindowsShiftDown

Blocks the Windows logo key+Shift+Down Arrow key combination used to minimize the active window.

WindowsShiftLeft

Blocks the Windows logo key+Shift+Left Arrow key combination used to move the active window to the left monitor.

WindowsShiftRight

Blocks the Windows logo key+Shift+Right Arrow key combination used to move the active window to the right monitor.

WindowsShiftUp

Blocks the Windows logo key+Shift+Up Arrow key combination used to maximize the active window vertically.

WindowsSlash

Blocks the Windows logo key+Slash key combination used to open the Input Method Editor (IME).

WindowsSpace

Blocks the Windows logo key+Spacebar key combination used to switch layout.

WindowsT

Blocks the Windows logo key+T key combination used to set focus on taskbar and cycle through programs.

WindowsTab

Blocks the Windows logo key+Tab key combination used to cycle through Windows Store apps. Also blocks the Windows logo key+Ctrl+Tab and Windows logo key+Shift+Tab key combinations.

WindowsU

Blocks the Windows logo key+Comma key combination used to peek at the desktop.

WindowsUp

Blocks the Windows logo key+Up Arrow key combination used to maximize the active window.

WindowsV

Blocks the Windows logo key+V key combination used to cycle through toasts in reverse order.

WindowsW

Blocks the Windows logo key+W key combination used to open the Settings Search charm.

WindowsZ

Blocks the Windows logo key+Z key combination used to open the app bar.

Applies to

To determine whether a component applies to the image you’re building, load your image into Windows SIM and search for the component or setting name. For information on how to view components and settings, see Configure Components and Settings in an Answer File.

Keyboard filter

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