andykn

I found that, with 6u20, the updater is a separate install within the .exe. So if you uninstall the updater after installing the JRE the updater is gone: start /wait jre-6u20-windows-i586-s.exe /s REBOOT=suppress SYSTRAY=0 JAVAUPDATE=0 AUTOUPDATECHECK=0 JU=0 start /wait msiexec /x {4A03706F-666A-4037-7777-5F2748764D10} /qb- The GUID appears to be the same for u21 ({4A03706F-666A-4037-7777-5F2748764D10}). For future versions you can check in the registry for HKLM\Software\Microsoft\Windows\Current Version\Uninstall for "Java Auto Updater" or similar