A drive letter represents a single alphabetic character (typically through A-Z) that can be assigned to the following-
Physical disk partitionFloppy disk driveRemovable device/ CD-ROM/ mapping network drive in the computer.
Drive letter missing in Windows 11/10
Generally, drive letter C: is assigned to the first disk partition where the running Windows is installed. So, if this fixed drive letter is missing from either Windows File Explorer or Disk Management, it can cause inconveniences or even makes the partition inaccessible. If C or D Drive letter is missing, then to fix this issue, you can: The above steps can help you to get the missing drive letter back.
1] Manually Show Missing Drive Letters
From the Start search, open Folder Options and click the ‘View’ tab. Scroll down the list of options until the ‘Show drive letters’ option is seen. Simply check the box marked against this option. Click ‘Apply’, then ‘OK’. Now, go back to the ‘This PC’ window. Your drive letters should be visible.
2] Ensure drive has a drive letter assigned in Disk Management
In Disk Management, every drive is assigned a drive letter, but if it is missing, In Windows Disk Management, you can get it back. There’s a function ‘Change Drive Letter and Paths’ that appears when you right-click menu of a partition (Volume). It helps you to-
Add the drive letterChange the drive letterRemove the drive letter
If the last option, i.e., ‘Remove’ is selected and applied, the letter of the target drive will be removed and disappear in Disk Management. This can be one of the reasons for missing a drive letter. So, to reverse this change, choose ‘Add’ to assign a letter to the selected drive. It is essential to assign the drive with the original letter – because, if not, then the programs relying on the original letter might not work as desired. If the original letter is taken by a new drive, change the letter of the new drive to another available letter and then allocate the released letter for the target drive.
3] Assign the letter via a Registry tweak
Launch Registry Editor and navigate to- See if a device is shown as being mounted at the specific drive letter. Next, right-click the drive letter that you want and choose “Rename” from the right-click menu to change the letter to any other unused letter. Read: How to change Drive letter in Windows 11/10.
4] Update Disk Drives Driver
From the WinX Menu, open Device Manager, expand Disk drives, right-click on your Hard Disk and select Update, to update the device driver.
5] Run Hardware Troubleshooter
Run the Hardware Troubleshooter from the Troubleshooters Page and see if it helps. Hope something helped!
