目的地檔案系統磁碟區無法使用。請確定其他應用程式，例如 CheckDisk 不在執行中，因為它會鎖定磁碟區。磁碟區可供使用時，背景智慧型傳送服務 (BITS) 將再試一次。

The destination file system volume is not available. Verify that another program, such as CheckDisk, is not running, which would lock the volume. When the volume is available, Background Intelligent Transfer Service (BITS) will try again.