To analyze JAR files, download and install Java Runtime Environment (JRE).
By default, Intelligent Sandbox supports JRE version 7.
Download and install the Java SE Development Kit for your computer.
On your computer, click → → .
On the Java Control Panel, click the Security tab.
Change the Security Level to Medium, then click OK.
Note
If you are using Java 8 or above, change the security level to High.