Hi minimoongirl1119,

Try installing FW to a different folder. Check out proxy00's advice here (refers to LW but do the same for FW): FIX: LimeWire won't start or closes immediately

If that's no help, try this older java (JRE 6u5): Archive: Download Java Platform Standard Edition (Java SE) 6u5
As usual - download the JRE offline installer, remove all other Java versions installed on your computer, install & then reboot the computer.