FULL PRODUCT VERSION :
java -version
java version "1.8.0_60"
Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
Java HotSpot(TM) Client VM (build 25.60-b23, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Windows10

EXTRA RELEVANT SYSTEM CONFIGURATION :
I use the 32 bits (x86) version of jdk.

A DESCRIPTION OF THE PROBLEM :
ComboBox and other Javafx controls are KO with Windows10.




STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and launch the attached example. And observe that combobox is frozen.
On widows 7-8, it works, not on windows10


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package comboboxwindows10;

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.util.StringConverter;

/**
 *
 * @author bruno
 */
public class ComboBoxWindows10 extends Application {

    enum Bruno {

        Brno, ornB, Bruno
    };

    @Override
    public void start(Stage primaryStage) {
        Button btn = new Button();
        btn.setText("Say 'Hello World'");
        btn.setOnAction(new EventHandler<ActionEvent>() {

            @Override
            public void handle(ActionEvent event) {
                System.out.println("Hello World!");
            }
        });
        ComboBox<Bruno> combo = new ComboBox<>();
        combo.getItems().addAll(Bruno.Brno, Bruno.Bruno, Bruno.ornB);
        combo.addEventHandler(MouseEvent.MOUSE_PRESSED, (javafx.scene.input.MouseEvent event) -> {
            combo.requestFocus();
        });
        combo.setConverter(new StringConverter<Bruno>() {

            @Override
            public String toString(Bruno t) {
                return t.toString();
            }

            @Override
            public Bruno fromString(String string) {
                throw new UnsupportedOperationException();
            }
        });
        VBox root = new VBox();
        root.getChildren().addAll(btn, combo);

        Scene scene = new Scene(root, 300, 250);

        primaryStage.setTitle("Hello World!");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }

}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Stay on Windows 7/8. But new machines are already sold with Windows10 and it should work!!!