private static async Task InitDefaultDownloadFolder()
        {
            var futureAccessList = Windows.Storage.AccessCache.StorageApplicationPermissions.FutureAccessList;

            if (!(await DefaultDownloadFolderExists()))
            {
                bool created = false;
                int  i       = 1;
                do
                {
                    try
                    {
                        var myfolder = await DownloadsFolder.CreateFolderAsync((i == 1)? "Received" : $"Received ({i})");

                        FutureAccessListHelper.MakeSureFutureAccessListIsNotFull();
                        futureAccessList.AddOrReplace(_downloadMainFolder, myfolder);
                        created = true;
                    }
                    catch
                    {
                        i++;
                    }
                }while (!created);
            }
        }
        private static async Task <IStorageFolder> TrySetDownloadFolder(IStorageFolder folder)
        {
            var futureAccessList = Windows.Storage.AccessCache.StorageApplicationPermissions.FutureAccessList;

            FutureAccessListHelper.MakeSureFutureAccessListIsNotFull();
            futureAccessList.AddOrReplace(_downloadMainFolder, folder);

            return(await GetDefaultDownloadFolder()); //Make sure everything's fine
        }