Go to Search. All files/folders. Type in Limewire. Delete everything that it finds. Now you can start with a fresh download, but before that check your version of Java. Here is some advise on that.
First of all, remove any other Java versions installed (via Add/Remove Programs). Now download the JRE Offline installer from here.
Java SE Downloads
After Java's installed, install LW. When you click to download the LW installer, cancel the dialog box which pops up...now use the option to download the
offline installer.
Lime Wire » Download LimeWire. Hope this Helps