File download problem(utorrent)

Hello,

There is a cyber cafe in my neighborhood. I want to download a file(size 3GB) from there. Actually this is a torrent link, i m using Utorrent to download file, because the size is very large it will take more than 10 hours to complete. so i configured utorrent to start on windows startup and to download this file in background. i set a boss key to hide utorrent icon from system tray. You all know that a Boss key is required to hide the icon from system tray. I am using a software (actually script) to send keystroke that sends the boss key.I put these both utorrent and script to windows startup but the problem is whenever i reboot pc all startup entries in registry gets automatically deleted. May be they have installed any data restore software. One more thing all downloaded data gets automatically deleted on every reboot. pls help me i want to download that file, pls help me guys.