Before installing the JRE, verify that your system meets the minimum system requirements.
See System Requirements for Installing the JDK and the JRE on Windows in the Java Platform, Standard Edition Installation Guide for minimum processor, disk space, and memory requirements.
If you have any difficulties, see General Java Troubleshooting in the Java Platform, Standard Edition Troubleshooting Guide or submit a bug report at http://bugreport.java.com/bugreport/.