How to Download and Install Java Runtime (JRE) Portable in USB Flash Drive

How to install Java on your portable USB Flash Drive or Thumbdrive? If your web surfing habits requires the heavy usage of Java and yet you are not allowed to install Java on a public computer such as in a public library, here is a simple solution. Follow this simple step by step tutorial on how to install Java Runtime (JRE) Portable.

1. Insert a USB flash drive to your computer. 
2. Download Java Portable and install. The default destination of the folder is CommonFilesJava, add the USB drive letter at the front, assuming that your USB drive is E:CommonFilesJava. 
3. When finished installing Java Portable, download the Java Portable Launcher and change the destination folder again. Add E: infront so that the destination folder becomes E:JavaPortableLauncher and click the install button. 
4. To run Java applet or application, go to ‘my computer’ and then ‘G:JavaPortableLauncher’ and run JavaPortableLauncher.exe which will open a window asking you to select a JAR file. 

P.s: If you are getting the error “Java Portable Launcher cannot be started. You may wish to re-install to fix this issue. (ERROR: Java Portable [PortableApps.com/JavaPortable] could not be found)“, this means that you’ve installed the Java Portable at the wrong location, make sure that Java Portable is installed in the same drive.