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
Try this. It worked for me.
Go to RUN and type gpedit.msc then completely disable Onedrive. Have you noticed that the problem only existed after the last large download from Microsoft? It contained this package. I also removed it from the Start menu.
This appears to be the cause of the issue. Something to do with downloading temporary files, which of course an applet is.
Once done everything went back to normal.