NIS - at risk

I’ve searched Google and here for a solution but failed. Windows Vista Home 32 NIS 20.2.0.19 214 days remaining. NIS displays “Your computer and network protection are at risk.” I’ve clicked “Fix Now” numerous times without resolution. Per posts here, I’ve check my PCs time/date and they are current. I’ve DLd and run 20130115-002-v5i32.exe. Get a popup stating the file ran successfully. Ran “Fix Now.” No resolution. Rebooted. No resolution. My search has found a reference to IE9 compatibility I don’t understand. Anyway, I use Firefox exclusively. How do I resolve this problem?