Tip: Quickest way to find out the installed Java version Posted on1 July 2011AuthorAlex VerboonLeave a comment To find out the Java version you have installed, simply open a command prompt and type java –version Like this:Like Loading... Related posts: Skype Group Policy Settings How to disable Java add-ons in Internet Explorer with Group Policy Quick Access to installed QFEs Get the latest version of the GPOTool.exe ToolTip: .NET Version Detector