Corrupted Installation or something like that.
 

I started having problems with my Limewire and it told me to redownloaded or update it or something, so I did. Once I downloaded it and after it tried to install it told me that it was corrupted. It told me to try it again and I did. It still won't work so I don't know what the problem is.

uninstall LW via Start menu -> Programs -> LW -> Uninstall.
Then run this utility: Crap Cleaner

Then use this version by zab (backup installer)

* You need to be sure you have Java installed. Best to use the OFFLINE installers for Java for safety. You can download the latest version of java from here (java versions)