Return of Reckoning

Error Downloading HTTP:
System.UnauthorizedAccessException: L'accès au chemin d'accès 'C:\Users\User\Desktop\Warhammer Online - Age of Reckoning\WAR.exe' est refusé.
à System.IO.Error.WinIOError(Int32 errorCode, String maybeFullPath)
à 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)
à System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
à RoRLauncher.Client.AError Downloading HTTP:
System.UnauthorizedAccessException: L'accès au chemin d'accès 'C:\Users\User\Desktop\Warhammer Online - Age of Reckoning\WAR.exe' est refusé.
à System.IO.Error.WinIOError(Int32 errorCode, String maybeFullPath)
à 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)
à System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
à RoRLauncher.Client.A98wHY8h7w09xWaFRnT(Object , FileMode , FileAccess )
à RoRLauncher.Client.qr1ZxRLQGc(Object , Object )98wHY8h7w09xWaFRnT(Object , FileMode , FileAccess )
à RoRLauncher.Client.qr1ZxRLQGc(Object , Object )