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(3 Ways) How to Password Protect a Folder in Windows 10/11?

Published/Updated on Tuesday, May 20, 2025

M3 Software author Wilsey Young

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Wilsey Young

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"How can I password protect a folder in Windows?" Many Windows users are curious about this, especially those who want to protect the folder containing sensitive data against unauthorized access. This post introduces different tools and shows how to password protect a folder in Windows 10/11.

Reddit discussions on password protecting a folder in Windows 10/11

If you are interested in how to password protect a folder in Windows and wonder if there are any tips from other netizens or geeks, the following heated discussions in the post from Reddit may help.

How do I password protect a folder on Windows 10?
by u/eatmydonuts in Windows10

How to password protect a folder in Windows 10/11

The following contents show how to password protect a folder in Windows using built-in tools or popular third-party software, including the built-in folder encryption tool, BitLocker, or the WinRAR compression tool.

How to password protect a folder in Windows 10/11 using the built-in folder encryption tool

This is a straightforward built-in folder encryption method that few people know:

  1. Right-click on the target folder, choose "Properties", and click the "Advanced" button under the "General" tab.
  2. Tick "Encrypt contents to secure data", click "OK", then click “Apply” in the “Properties” window.encrypt contents to secure data in Windows 
     
  3. Choose "Apply changes to this folder, subfolders and files" and click "OK." 
    apply changes to this folder subfolders and files in Windows
  4. Notice and click the notification to back up the encryption key to avoid losing access to the encrypted files. 
    back up your encryption key notification
  5. Choose “Back up now (recommended)” when you are asked to back up the certificate and key to a removable disk. 
    back up now to back up file encryption certification and key
  6. Start the Certificate Export Wizard and click “Next.” 
    start Certificate Export Wizard
  7. Choose the format you want to use or keep the defaults as follows. 
    export file format in Certificate Export Wizard
  8. Tick "Password", input the password twice, and click "Next." 
    input password in Certificate Export Wizard
  9. Click "Browse" to save the certificate and key to the removable disk you insert, then click "Next." 
    file name to export in Certificate Export Wizard
  10. Click "Finish" to finish the wizard. 
    complete the Certificate Export Wizard

This method is linked with the Windows user account, which means as long as you are logged into the user account that guides you through the steps above, you don't have to input the password every time you access the protected folder.

On the contrary, if you are logged into the wrong account or you move the encrypted folder to another computer, you will need the removable disk containing the certificate and key to regain access to the folder.

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How to password protect a folder in Windows 10 using BitLocker

BitLocker is a built-in encryption feature that helps protect your data by encrypting the entire drive or partition. BitLocker uses the Advanced Encryption Standard (AES) encryption algorithm to protect your drive or partition against unauthorized access, even if someone removes the drive and attempts to read it on another computer.

As you can see, this is an indirect way to password protect the folder, as BitLocker encrypts the entire drive or partition, but BitLocker is worth trying, thanks to its advanced encryption algorithm and high security.

If you don't want to encrypt the entire drive or a large partition that contains the target folder, use the unallocated space of the disk to create a small new volume (partition) through Disk Management:

  1. Right-click on the "Start" menu button or press the "Windows+X" keys to choose Disk Management.
  2. Right-click on the unallocated space in Disk Management and choose "New Simple Volume."
    create new partition through Disk Management in Windows 10
  3. Set the simple volume size and click "Next."
    create new partition through Disk Management in Windows
  4. Assign a drive letter and click "Next."
  5. Format the volume as follows.

Here's how to password protect a folder in Windows 10 using BitLocker:

  1. Open File Explorer and right-click on the drive or partition and choose "Turn on BitLocker."
    turn on BitLocker through File Explorer in Windows
  2. Enter the password and click "Next."
    turn on BitLocker set password
  3. Back up the BitLocker recovery key.
    BitLocker back up BitLocker recovery key
  4. Choose how much of your drive to encrypt and click "Next."
    BitLocker how much of drive to encrypt
  5. Select the encryption mode and click "Next."
  6. Tap on "Start encrypting."

BitLocker feature is not included in Windows 11/10/8/7 Home Edition. Here's why and how to resolve: Quick Solutions to BitLocker Not Showing in Windows 10

How to password protect a folder in Windows 10 using a file compression tool

You can indirectly password protect a folder through a file compression tool, like WinRAR, in Windows, as some tools are designed with the password protection feature.

Here's how to password protect a folder in Windows 10 using WinRAR:

  1. Right-click on the folder you want to protect and choose "Add to archive."
  2. Tap on the "Set password" button under the "General" tab.
    WinRAR compression set password
  3. Set the password and click "OK" to complete.

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