My USB drive works fine under Windows 7, but when I insert it into a different Operating System System, e.g., Windows XP, it prompts me to reformat the drive. Why?
我的 USB 隨身碟在 Windows 7 下可以正常使用，可是當我將它插入另外一種作業系統時 (例如 Windows XP)，系統會提示我重新格式化隨身碟。為何會如此？
You may have formatted the drive with an exFAT file system while using Windows 7. In order to resolve, reformat the drive with the FAT32 or NTFS file system. You may also be able to update your operating system to be compatible with exFAT. But be aware some devices (MP3 players, digital photo frames, etc) will not read exFAT file system.
您可能在 Windows 7 下使用了 exFAT 檔案系統來格式化隨身碟。為了解決這個問題，請以 FAT32 或 NTFS 檔案系統重新格式化隨身碟。
您也可以更新您的作業系統，即可與 exFAT 相容。
不過請您注意，某些裝置 (MP3 播放器、數位相框等) 將無法讀取 exFAT 檔案系統。