The first step to getting a fully portable OSRS client is to install a portable version of Java on a USB flash drive. Installing a Portable Java Runtime Environment

A Windows computer to set up the portable USB flash drive with Internet access!.

A USB flash drive (pretty much any size, the method uses about 200 MB of disk space).

I expect you have the following requirements if you want to follow this tutorial:

Creating a Batch File to Start the Official OSRS Client.

Running the Official OSRS Client JAR File.

Download the Official OSRS Client JAR File.

Creating a Batch File to Start RuneLite.

Creating a Batch File to Update RuneLite.

Installing a Portable Java Runtime Environment.

Anyway, I personally do not really have a reason to do this, but I am always up for a new challenge! This post was written and tested on Windows 10, but the general methods should be transferable to other Windows versions and Linux-based systems. This makes it difficult as Java is required to play OSRS, as well as the client - both require installation! And the Java install requires administrative rights to install. You might be asking why would anyone want to do this? There are a few reasons, but the most logical reason is when you have a computer where you cannot install additional software.

Do not leave artifacts (e.g., files) on the host computer.

Implement an easy method to start (run) the OSRS client from the USB thumb drive.

Configure the OSRS client (either the official client or RuneLite) to store all data (primarily the cache and any other files) on the USB thumb drive.

Install a portable version of Java (JRE) on a USB thumb drive so that Java does not need to be installed on the host computer.When embarking on this project I set the following requirements: This post is a documented journey about creating a completely portable version of OSRS that can be played from a USB flash drive.

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