free download uTorrent v3.3.2
Small enough to run off a USB key, but powerful enough to download any torrent in a jiffy (if it's got enough seeders), uTorrent 2.0 is easy on the eyes and smart on your network. The memory footprint for uTorrent is very small, and system resources are barely touched. While you're torrenting, you shouldn't be surprised to find that other programs that use your Internet connection slow down, but the latest version of uTorrent has an answer to that. Called uTorrent Protocol, or uTP, it's a built-in throttling that detects network congestion and slows down the torrent until the traffic jam has dissipated.
Operating system: Windows XP/Vista/7/8