It's an error about windows environment and JRE.
To resolve this problem, just re-install JRE selecting option "Support for Additional Languages".
To detect that this is definitely the problem (Support for Additional Languages was not selected in the initial install), check the Java lib directory (C:\Program Files\Java\jre\lib if using default install location on Windows) for
rt.jar and charsets.jar files. If charsets.jar file is not found, than reinstalling JRE with option "Support for Additional Languages" will resolve the problem.