Okay, after deleting and reinstalling Java (32 & 64 bit) numerous times with no success, I finally figured out the problem... It was my graphics card driver.
If you get the message about Java not working here is the link to the Java site that explains what to do. https://java.com/en/download/help/java_crash_video_driver.xml
After updating my driver and restarting my pc, the modpacks run fine!