diff --git a/Kconfig b/Kconfig
index 9642923ff7..25fa1f8554 100644
--- a/Kconfig
+++ b/Kconfig
@@ -61,10 +61,16 @@ choice
 config WINDOWS_NATIVE
 	bool "Windows Native"
 	select TOOLCHAIN_WINDOWS
+	depends on EXPERIMENTAL
 	---help---
 		Build natively in a CMD.exe environment with Windows style paths
 		(like C:\cgywin\home)
 
+		This Windows native build is complete and available, but not often
+		used or verified.  As a consequence, it cannot be assured to be
+		fully functional at any given time.  Hence, it is marked here as
+		EXPERIMENTAL so that the end user will be aware of this state.
+
 config WINDOWS_CYGWIN
 	bool "Cygwin"
 	select TOOLCHAIN_WINDOWS
diff --git a/boards/arm/stm32/stm32f4discovery/configs/winbuild/defconfig b/boards/arm/stm32/stm32f4discovery/configs/winbuild/defconfig
index 34c6b18052..dc4ff4248a 100644
--- a/boards/arm/stm32/stm32f4discovery/configs/winbuild/defconfig
+++ b/boards/arm/stm32/stm32f4discovery/configs/winbuild/defconfig
@@ -18,6 +18,7 @@ CONFIG_BOARD_LOOPSPERMSEC=16717
 CONFIG_DEV_LOWCONSOLE=y
 CONFIG_DISABLE_ENVIRON=y
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_EXPERIMENTAL=y
 CONFIG_HOST_WINDOWS=y
 CONFIG_INTELHEX_BINARY=y
 CONFIG_MAX_TASKS=16