By "deleted all my properties from LW", do you mean you deleted the preferences folder? That won't do any harm... it's often a fix for all sorts of problems!

Since you're not saying what other fixes you have tried, look through these & ignore whatever you've tried before (makes it really hard to help if people aren't a bit specific)

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Have you tried removing your old Java version & updating Java with the offline installer?
http://www.java.com/en/download/manual.jsp