This Knowledge aArticle provides a list of known KBs related to the following error for Open Workbench (OWB)
Error: Cannot start or find the Java 1.8 JRE (1). The 1.8 JRE may not have been installed or the registry may be incorrect.
Below is a list of known issues. If the below information doesn't help, we also recommend utilizing our self-service for any other known solutions that may not be documented here (See Known Clarity issues: Tips in using Self Service).