Oracle Java SE Critical Patch Update Advisory - October 2011:
http://www.oracle.com/technetwork/topics/security/javacpuoct2011-443431.htmlFollow these steps to remove older version of Java components and update to the latest version:
Download the latest version of
Java Runtime Environment [JRE].Click the Download JRE button to the right.
Click to enable the box that says:
"Accept License Agreement",the page will then refresh.
Click on the link to download the Windows Offline installation and save to your desktop.
Close any programs you may have running - especially your web browser.
Go to Start > Control Panel double-click on Add/Remove programs and remove all older versions of Java.
If running Win Vista/Win 7,go to Control Panel > Programs and Features.
Check any item with Java Runtime Environment (JRE or J2SE) in the name.
Click the Remove/Uninstall or Change/Remove button.
Repeat as many times as necessary to remove each Java version.
Reboot your computer once all Java components are removed.
Then from your desktop double-click on jre-7u1-windows-i586.exe to install the newest version.
If running Win Vista/Win 7,right click on jre-7u1-windows-i586.exe [jre-7u1-windows-x64.exe if running Vista/Win 7 64bit] and select Run as Administrator.
Verify your installation of Sun Java:
http://www.java.com/en/download/help/testvm.xml