Prerequisites
The OriWotw Randomizer requires the latest version of the game on PC (either windows store or steam is fine). It also requires Java 8 for seed generation.
Download
Download the lastest WotWRando.exe from this page. Launch this file to install the randomizer. Remember where you installed it, since you will be launching the mod from this folder.
Steam
Since the randomizer needs to launch Ori and the Will of the Wisps, it needs to know where your steam installation folder is. If you installed Steam in a non-default location, the randomizer installer will ask you this path. You can change the Steam path later in your the settings if needed.
Windows Store
The randomizer should automatically detect that you have the windows store version of the game and prompt you to install the randomizer for it. If it does not, after installing, you can open the settings by either clicking the Settings button or launching RandoSettings.exe from the randomizer installation folder. Look for the the 'Use Windows Store' option.
After Installation
Check out the getting started page for suggestions on how to generate your first seed.