Sometimes, you might want to open a folder quickly without going through many clicks. Mounting a folder as a drive means you can give it a drive letter (like D: or E:) so it shows up just like a real hard drive in Windows.
Windows 11 has a simple tool called subst that lets you do this easily. This guide will show you how to set it up step-by-step.
What You Will Need
- A Windows 11 computer
- Access to Windows Terminal, PowerShell, or Command Prompt
- The folder you want to mount
Steps to Mount a Folder as a Drive
Step 1: Open Windows Terminal
Click the Start button, type Windows Terminal, and open it. You can also use PowerShell or Command Prompt.

Step 2: Check Existing Mounted Drives
Type the command below and press Enter to see if you have any folders already mounted as drives:
subst
Step 3: Mount Your Folder as a Drive
Type this command, then press Enter:
subst X: C:PathToYourFolder
Note: Replace X: with the drive letter you want to assign (like B: or G:). Make sure the letter is not already used by another drive.
Also, replace C:PathToYourFolder with the full path to your folder. For example:
subst B: "C:UsersRichardDocumentsBusiness"
Step 4: Access Your New Drive
Now open File Explorer and look under This PC. You should see the new drive letter you chose — clicking it will take you directly to your folder.
Step 5: Remove the Mounted Drive (If Needed)
If you want to remove the mounted drive later, open Windows Terminal again and type:
subst B: /D
Replace B: with the letter of the drive you want to remove.
Summary
- Mounting a folder as a drive gives you quick access to important files.
- The
substcommand is an easy way to do this in Windows 11. - You can create and remove these virtual drives anytime using simple commands.
If you have questions or want to share your experience, please leave a comment below!





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