John,
Uninstalling the Windows Management Framework 4.0 (KB2819745) and reinstalling it (http://www.microsoft.com/en-gb/download/details.aspx?id=40855) after a restart might work for you on your Win7 machine.
John,
Uninstalling the Windows Management Framework 4.0 (KB2819745) and reinstalling it (http://www.microsoft.com/en-gb/download/details.aspx?id=40855) after a restart might work for you on your Win7 machine.