I am facing errors while installing limewire

Hi team,
I am using Windows XP home edition. Last week, I formatted my PC as per the orders which I have got. So, I download LimeWire software as I need to perform my office job. After downloading, I am facing errors while installing it.
My software is not being trusted by the computer. Kindly make it to install and add it to trusted applications so that I will not receive this error message again.
Thanks in advance.
