Due to recent updates, all users are required to create an Altair One account to login to the RapidMiner community. Click the Register button to create your account using the same email that you have previously used to login to the RapidMiner community. This will ensure that any previously created content will be synced to your Altair One account. Once you login, you will be asked to provide a username that identifies you to other Community users. Email us at Community with questions.
Answers
I'll assume you're on Windows because on all other operating systems it depends on what Java version you have installed locally.
The quickest way to check is by navigating to the installation folder of RapidMiner Studio, going into the "jre\bin" subfolder and look for a file called "WindowsAccessBridge-64.dll". If that is there, you have the 64 bit version. If the file is instead called "WindowsAccessBridge-32.dll", you have the 32 bit version.
Regards,
Marco