"scan and remove"

I'm getting some kind of message that pops up on my computer every once in awhile, like every 10 or 15 minutes i guess, thats titled "Scan and Remove". Then it says type- application, name- LimeWire, scope- All Users, and gives the path- C:/program files/limewire/limewire.exe. When i scan it, it says that no viruses or infections are found, and when I tried once to remove it, it didnt remove it and the message continued to show up. My other option it gives me is "Remove completely (no undo)", but b/c its an .exe file, I dont want to remove it and have LimeWire stop working on me. Is there something I can do to get rid of this box? Am I supposed to remove this application?