From Wikipedia: In computing, drive letter assignment is the process of assigning alphabetical
identifiers to volumes. Drive letter assignment allows multiple highest-level namespaces. Drive
letter assignment is thus a process of using letters to name the roots of the "forest"
representing the file system; each volume holds an independent "tree" (or, for non-hierarchical
file systems, an independent list of files).
After upgrading computer system or connecting multiple hard disks. If you want to bring order
out of chaos and reorganize your drives in a certain way, change letter of drive can be the most
New added hard disk may not be recognized by the computer and thus can’t be accessed. At this
moment, the usual solution is to assign a drive letter to it. Then, it can be reached.
Some other situations when you have to change drive letter:
1. Connect one PC to another one.
2. Upgrade the drive and the new drive letter can’t be changed to the previously used drive.
3. The drive has been hidden so that we can change drive letter to show it.
4. Reform system and the drive letters changed.
How to create a disk image?
Disk Management assign drive letter
Partition Assistant Change Drive Letter
Step1. Right click the volume you want to
rename drive letter and select “Change Drive Letter and Path…”
Step2. Choose “Change” to change drive
letter in the pop up window.
Step3. Select new drive letter for object
Step1. Right click aim partition and selctc
“Advanced” – “Change Drive Letter”.
Step2. Choose a new drive letter for the
Step3. Preview the partitions layout and
click “Apply” on upper left to assign letter to drive.