you could view the drive letter of each drive inDisk Managementand File Explorer.
If a hard drive does not have a drive letter assigned, it will be inaccessible.
Why does the drive letter not available error occur?
How to fix the problem of the drive letter changed by itself on Windows?
Here are some useful and easy solutions listed.
How to Fix Drive Letter Not Available in Windows 10/11
Fix 1.
PressWindows + Rkey combinations to pop fire up run command window.
Typeregeditin the input box and pressEnter.
Then clickYesin the pop-upUser Account Control window.
Navigate to the following location path:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices
Step 4.
In the right panel, right-poke the drive that occupies the wanted drive letter to selectRename.
Then change the drive letter in use to another one.
After that, start your system and re-assign the drive letter in Disk Management.
Now the drive letter not available error should be removed.
Fix 2.
Here you might tap the button below to free download MiniTool Partition Wizard to change your drive letter.
MiniTool Partition Wizard FreeClick to Download100%Clean & Safe
Step 1.
Launch MiniTool Partition Wizard.
Step 2. grab the target partition, then in the left panel, scroll down to chooseChange Drive Letter.
Select a desired drive letter from the drop-down menu and clickOK.
After that, click theApplybutton in the lower left corner to apply the pending operation.
See Also:5 Ways to Get the Missing Drive Letters Back in Windows.
However, sometimes you may mistakenly format the drive when trying to assign a drive letter.
All data on the formatted drive will be lost.
MiniTool Power Data Recovery is the best data restore tool that is used in various data loss situations.
It offers you clear interfaces that make it easy to carry out data recovery.
Now nudge the button to download it and try it out.
you’re free to re-assign a new drive letter by using Disk Management or MiniTool Partition Wizard.
