移动硬盘无法完全识别

[solarshr]

同一块移动硬盘500G，在xp下识别正常，在win7下无法正常识别，只能识别出第一个分区，二三分区在管理工具下可见但无卷号分配，属性不可看。

请问是什么原因？

[GordianZ]

USB devices that are recognized as "removable media" will only have the first partition mountable in Windows.
TL;DR: Your portable HDD chipset sucks.

Solution 1:
Format it as 1 partition only.

Solution 2:
Change the driver to make Windows recognize it as an regular external HDD.
http://www.ghacks.net/2008/10/16/how-to-create-multiple-usb-stick-partitions/