I tried to run \"eclipse-jee-juno-win32-x86_64\" , but it raised the following error \" java runtime environment JRE or java development kit must be availab
Check the eclipse.ini file and make sure there is no -vm option there that is pointing to a non existing java install now. You can delete the option to let Eclipse figure out what java install to use or change it so it's pointing to the new install.