# CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION

New in version 3.4.

Visual Studio Windows Target Platform Version.

When targeting Windows 10 and above, Visual Studio Generators for VS 2015 and above support specification of a Windows SDK version:

- If `CMAKE_GENERATOR_PLATFORM` specifies a `version=` field, as documented by Visual Studio Platform Selection, that SDK version is selected.

- Otherwise, if the `WindowsSDKVersion` environment variable is set to an available SDK version, that version is selected. This is intended for use in environments established by `vcvarsall.bat` or similar scripts.

  New in version 3.27: This is enabled by policy `CMP0149`.

- Otherwise, if `CMAKE_SYSTEM_VERSION` is set to an available SDK version, that version is selected.

  Changed in version 3.27: This is disabled by policy `CMP0149`.

- Otherwise, CMake uses the latest Windows SDK version available.

The chosen Windows target version number is provided in `CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION`. If no Windows 10 SDK is available this value will be empty.

One may set a `CMAKE_WINDOWS_KITS_10_DIR` environment variable to an absolute path to tell CMake to look for Windows 10 SDKs in a custom location. The specified directory is expected to contain `Include/10.0.*` directories.

See also `CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION_MAXIMUM`.