The drive letters that Windows automatically assigns to your hard drives and external drives aren’t set in stone. Whether you want to further customize your PC or just want the same driver letter for a specific drive, there are several ways you can change the drive letters if you want. This will also ensure that Windows has no trouble assigning a new letter to a drive.
How to Change Drive Letter in Windows 11
Here's everything you need to know about changing a drive letter to a drive in Windows 11.
Drive letters are initially assigned during Windows installation, with the letter 'C' being the default for the system drive. Letters 'A' and 'B' were used for floppy drives, but since they are now obsolete, these two letters can be assigned to a different drive. All other internal drives and partitions come after this, with their letters automatically assigned starting with the letter 'D'.
If a drive has a letter assigned to it, but it is not connected, Windows will take the liberty of assigning it to another drive. When that drive is then reconnected, Windows will simply assign the next available drive letter.