Method One:
Open WINPM, you can also see that the PE has recognized the mobile hard disk (disk 1), but did not assign the letter to it.
Right-click on a partition on a removable hard disk (disk 1)-"mount"-"OK"-"close" and assign it a letter. Go to "My Computer" or "explorer" and look at it, ok!.
Method Two:
With the method one in Disk management for 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 Three:
With the method one in Disk management for the mobile hard disk to assign a good letter, in the IE cable Address bar to enter the letter you have just assigned to the disk (X:), the return line, so you can exchange data with other partitions.
Method Four:
With a method that assigns a good disk character to a removable disk in Disk Management, open total Commander so that you can exchange data with other partitions at Total commander.
Method Five:
On the desktop, right-click "My Computer"--"manage"--"Disk Management", you can see that PE has recognized the mobile hard disk (disk 1), but did not assign a letter to it.
On 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! (Old Peaches set it up for us, EXPLORER.) EXE restarted!) Now you go to "My Computer" or "explorer" and look, ok!