@kurahashi How do you reproduce " launching two instances of utorrent when in autostart (or rather in run registry)." - I've tried a few different locales and it seems to perform correctly. EDIT: Ok, I think I can guess what is happening here. First, a little background - one of the only parts of uTorrent that is not unicode complaint is registry key manipulation. In the past uTorrent use to write the run entry with a value name of its product name with the micro sign, which is not portable across locales - so if you went from english to japanese you would have two run entries. To combat this, later 1.7 betas write the run entry value name with product name "uTorrent" instead of the one with the micro sign so that it ports across locales since registry manipulation is not unicode compliant. So, anyone having this problem will need to remove all uTorrent entries manually in the "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run" registry key, and then set uTorrent to run at startup again. Now, uTorrent should only launch on startup once.