Can not run Java Applets in Internet Explorer 11 using JRE 7u51

Question

Today I updated my Java version to 7u51. After the installation, I cleared Java Cache, browser\'s Cache, and logged into a secure website that uses an Applet to provide cert

Answer 1

I had the same problem with Java 7 u51. Only after I reset Internet Explorer it work again, Java was enabled in browser etc.

Internet options -> Advanced -> Reset...

Answer 2

We see the same problem with Java 7u51, IE11 and Windows 8.1. As detailed at http://answers.microsoft.com/en-us/ie/forum/ie11-iewindows8_1/windows-81-ie11-java-7u51-combination-doesnt-work/24af818d-7196-4dd5-96f5-9c0c65223744 and http://mail.openjdk.java.net/pipermail/security-dev/2014-January/010048.html and in a bug report submitted to Oracle on 17 January 2014 we find that all is OK until you agree to Java making changes to your system after installation. Once you allow the post-installation permission, Java is disabled. Other than constantly fighting off permission requests, the only workarounds we've found are to use a different environment: browser (use Firefox or Chrome), OS (use Windows 7) or Java version (use a Java 8 build).