How to do Win8 disk drive letter lost

The solution for losing Win8 disk drive number is as follows:
Due to virus or misoperation, the drive letter of the disk drive may be lost under the system, and the partition cannot be found and opened in the computer. Generally, this situation is redistributed in disk management. The drive letter can be solved.
Operating steps:
1. Use the shortcut key Win + X to open the system tool shortcut menu and select the disk management.

2. Open the disk management window.

3. From the list of disks, find the drive without the drive letter assigned, right click on the partition, select “change drive letter and path”.

4. Eject the drive path change window, click “Add”.

5. In the "Add Drive Letter and Path" window, select the drive letter you want to assign to the partition or drive, and click OK.

Note: Only unoccupied drive letters can be assigned at this time. If the drive letter is occupied by other partitions, the drive letter must be deleted before it can be reassigned.
6. Add a drive letter Click OK, the following prompt will pop up at the top right of the screen:

7. After clicking this prompt, you will be prompted to open the drive using Windows Explorer.

8. Turn on the computer and you will find the partition or drive that was lost before, and the problem can be solved.
Note:
If the drive letter is lost or deleted immediately after the drive letter is added, the prompt in action 6 may not appear.