Button behavior

This topic describes the expected behavior of hardware buttons.

Required and optional buttons in Windows 10

Operating system/device Power Volume up/Volume down Start Back/Search Camera Rotation lock
Windows 10 Mobile Required Required

Required for phones that use a WVGA display

Optional for all other devices

Required for phones that use a WVGA display

Optional for all other devices

Optional Not supported
Windows 10 for desktop editions (Home, Pro, Enterprise, and Education)/Tablets Required Required Optional Not supported Not supported Optional
Windows 10 for desktop editions/Other devices Required Required for devices with detachable keyboards. Optional for all other devices. Optional Not supported Not supported Optional

For more information about button requirements:

Button behavior in Windows 10

Single button behavior in Windows 10

Button Windows 10 for desktop editions Windows 10 Mobile Power Press and release Toggle On/Off Toggle On/Off Press and hold Launch Shutdown Curtain Launch Shutdown Curtain Long press and hold Hard shutdown Hardware reset Search Press and release Not supported Launch Cortana (in enabled markets)/Search Press and hold Not supported Launch Cortana or Search with Voice Volume up Press and release Increment volume Increment volume Press and hold Auto-repeat volume increment Auto-repeat volume increment Volume down Press and release Decrement volume Decrement volume Press and hold Auto-repeat volume decrement Auto-repeat volume decrement Back Press and release Previous app page/close app Previous app page/close app Press and hold Launch Task switcher Launch switcher UI Start Toggle Start screen Show Start screen Rotation lock Not supported Not supported (there is a UI option) Camera focus Launch Camera application Handled by Camera app (focus) Camera shutter Handled by Camera application Launch Camera app / take picture

Button combination behavior in Windows 10

As noted, some button combinations in Windows 10 apply to the Windows 10 button architecture or the Windows 8.1 button architecture. All other button combinations in Windows 10 apply to either button architecture. It is recommended to describe hardware buttons using the Windows 10 architecture.

Button combination Windows 10 for desktop editions Windows 10 Mobile
Start + Volume Up Toggle on-screen narrator Toggle on-screen narrator (provided that the corresponding ease-of-access setting is enabled)
Start + Volume Down Take screenshot Not supported
Start + Power Ctrl+Alt+Del (only if using Windows 8.1 button architecture) Not supported
Power + Volume Up Take screenshot (only if using Windows 10 button architecture) Take screenshot
Power + Volume Down Ctrl+Alt+Del (only if using Windows 10 button architecture)

Launch the Windows Feedback app

Hardware reset (after 10 sec)

Button behavior in Windows 8.1

Single button behavior in Windows 8.1

Button Windows 8.1 Windows 8.1 Phone Power Press and release Toggle On/Off Toggle On/Off Press and hold Launch Shutdown Curtain Launch Shutdown Curtain Long press and hold Hard shutdown Hardware reset Search Press and release Not supported Launch Cortana Press and hold Not supported Launch Cortana with Voice Volume up Press and release Increment volume Increment volume Press and hold Auto-repeat volume increment Auto-repeat volume increment Volume down Press and release Decrement volume Decrement volume Press and hold Auto-repeat volume decrement Auto-repeat volume decrement Back Not supported Not supported Start Toggle Start screen Toggle Start screen Rotation lock Release: Lock rotation Lock rotation Camera focus Not supported Not applicable Camera shutter Not supported Not applicable

Button combination behavior in Windows 8.1

Button combination Windows 8.1 Windows 8.1 Phone
Start + Volume Up Toggle on-screen narrator Not supported
Start + Volume Down Take screenshot Not supported
Start + Power Ctrl+Alt+Del Not supported
Power + Volume Up Not supported Take screenshot
Power + Volume Down Not supported Hardware reset (after 10 sec)

Related topics

Windows 10 button architecture
Minimum Hardware Requirements