Yeah, you got a virus. Wasn't LW's doing, it was most likely that zip file.

There are some remedies available to you. There's a lot of info with specific instructions in the forum. I'm too tired to direct you further right now. You can easily find it in the forum (read through Windows Support or NewPosts and you'll find the links).

Since LW has become so popular, it has become a bigger target for those against p-p file sharing. Most of us with experience in this have stopped downloading ANY zipped, or program files via LW. Some of us have stopped using LW altogether. (For prog files, you're much better off in the torrent world, where you can access user reviews before taking the risk of downloading.) It won't hurt you to go back on LW or Phex, etc. for awhile, and dl music or videos before venturing into torrents.
Sorry I can't be more helpful right now, but I'm falling asleep. Good luck with your computer. Don't panic; my last infection was easily killed via sys restore. (Don't try that until you read more in the forum.) zzz