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+CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY
+--------------------------------------
+
+Controls searching the :ref:`System Package Registry` by the
+:command:`find_package` command.
+
+By default this variable is not set and the behavior will fall back
+to that determined by the deprecated
+:variable:`CMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY` variable.
+If that is also not set, then :command:`find_package()` will use the
+:ref:`System Package Registry` unless the ``NO_CMAKE_SYSTEM_PACKAGE_REGISTRY``
+option is provided.
+
+This variable takes precedence over
+:variable:`CMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY` when both are set.
+
+In some cases, for example to locate only user specific installations, it
+is not desirable to use the :ref:`System Package Registry` when searching
+for packages. If the ``CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY``
+variable is ``FALSE``, all the :command:`find_package` commands will skip
+the :ref:`System Package Registry` as if they were called with the
+``NO_CMAKE_SYSTEM_PACKAGE_REGISTRY`` argument.
+
+See also :ref:`Disabling the Package Registry`.
+
+See also the :variable:`CMAKE_FIND_USE_CMAKE_PATH`,
+:variable:`CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH`,
+:variable:`CMAKE_FIND_USE_CMAKE_SYSTEM_PATH`,
+:variable:`CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH`,
+:variable:`CMAKE_FIND_USE_PACKAGE_REGISTRY`,
+and :variable:`CMAKE_FIND_USE_PACKAGE_ROOT_PATH` variables.