Updater not working

[WitchhunterShadow]

I got this error when attemptig to run the updater I tried rebooting my pc and redownloading the game (yes I shut off Utorent) any help is appreciated
System.IO.IOException: The process cannot access the file 'D:\Games\Returrn of Reckoning\Warhammer Online - Return of Reckoning\RoRUpdater.exe' because it is being used by another process.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
at RoRLauncher.MainWindow.GC6aVMtYjaZjvoA4lIW(Object , FileMode , FileAccess )
at RoRLauncher.MainWindow.frUNlTd9PQ(Object , DownloadDataCompletedEventArgs )