In the use of PE when you have encountered the system can not read the phenomenon of mobile hard drive, the following for everyone to solve this problem.
Method One: On the desktop of the WinPE system, the mouse right-clicks "My Computer"-> "Management"-> "Disk Management", you can see the WinPE system has recognized the mobile hard disk (disk 1), but did not assign it to the letter. In a partition on a removable hard disk (disk 1) (if there are 2 or more partitions), right-click "Change Drive name and path"-> "Add"-> "OK" and assign it a letter. In this way, I can't find the drive letter in My Computer or explorer. Don't worry, press the Ctrl+alt+del on your keyboard, bring up Windows Task Manager, select EXPLORER.EXE in the process, and then click "End Process"! Oh! Taskbar and desktop icons are gone!......, Oh! It's coming out again! Now you go to "My Computer" or "explorer" to see, ok!
Method Two: Open the WINPM tool software in the WinPE system, also can see the WinPE system already recognized the mobile hard disk (disk 1), just did not assign the letter to it. On a partition on a removable hard disk (disk 1), the mouse right-clicks "mount"-> "OK"-> "close" and assigns it a letter. Go to "My Computer" or "explorer" and look at it, ok!.
Using the above two methods, in the "My Computer" can see the letter, is a better way.
Method Three: With the method one in Disk Management to the mobile hard disk to assign a good letter, in the disk Management of your new assigned letter point on the right click and then click to open a dialog box, the effect is that the partition does not exist, ignore it, redo the line, so you can exchange data with other partitions.
Method Four: Use the method one in Disk Management to the mobile hard disk to assign a good letter, in the IE cable Address bar to enter the letter you just assigned, such as: (X:), enter the line, so you can exchange data with other partitions.
Method Five: Use the method one in Disk Management to assign a good disk character to the mobile hard disk, open total Commander so that you can exchange data with other partitions in total commander.