The portable hard drive cannot be read without drive letter 30

I also encountered it once, first it was very slow and then the recognition was very slow, and finally it was simply not recognized, and it was repaired by the manufacturer. Samsung's warranty is not bad.,It's just to be repaired.,Say it's a motor problem.,I don't know if your situation is the same as mine.。 But according to your description, the missing disk looks like it's broken.

When encountering this kind of problem, the first choice will think of what to do with the data in the mobile hard disk, and it has not been copied out, so many people will be very anxious, in fact, there is no need to worry, but don't operate the mobile hard disk indiscriminately, such as not formatting, the following will teach you to repair this problem non-destructively.

You can see that the capacity bar is no longer displayed on the E disk of the mobile hard disk, and it cannot be opened.

Solution One:

Click the Start button in the lower left corner" and then click the Run button, and then enter cmd, this command is to open the DOS window, or directly shortcut "win + r" and then enter cmd.

Then a DOS window will pop up as follows, enter "chkdsk h: f" which means to repair H disk, note that there is a space before H, if your mobile hard disk is G disk, it should be "chkdsk g: f", click OK after entering, and then the system will start to repair the mobile hard disk, and the repair will be completed after a while.

Then we opened "My Computer" and were pleasantly surprised to find that it no longer showed h: this drive letter, but the name of the hard disk, and it can enter the hard disk, the most important thing is that the data is there, and none of them are damaged or lost.

In addition, if there is still a folder in it that cannot be opened after the above repair, try to use the "chkdsk h: r" command to fix it, which means that it will detect bad sectors, not only repair data.

Solution 2:

If you feel that the dos command is too complicated, or if you are a win10 system, you can use the following methods to solve it.

Take advantage of the built-in "Disk Troubleshooting" feature to repair removable disks.

Right-click the Removable Disk drive letter and select the Properties item from its menu to the right.

Then in the pop-up window, select the second tool option and click the Check button.

Then on the page that opens, click on the Repair Drive button, and the system will automatically repair the portable hard drive, we just have to wait.

After the repair is successful, the information will be returned, at this time, we will go to my computer and open the mobile hard disk to see the data, it should be repaired.

In many cases, we can see the drive sign in the bottom right corner of the desktop, but I don't see the drive letter in my computer.

You can right-click "My Computer", select "Manage", and select "Storage-> Disk Management" from the pop-up dialog box to find our hard disk, and you will find that the hard disk we just inserted appears in it, but there is no drive letter.

Right-click on the hard drive, which is the drive that does not have a drive letter assigned to it, and select "Change Drive Letter and Path" to assign a drive letter to the drive.

After the assignment is complete, click OK to finish.

Solution: Control Panel --- Management Tools---Computer Management - Disk Management--- You will see that you move the hard disk--- right-click on the disk--- change the drive name and path--- add--OK---OK, if not, then your hard disk should have a problem...