How to Password Protect a Folder in Windows 11

If you share a computer with family members or coworkers, you likely have sensitive files—like tax returns, personal photos, or financial documents—that you want to keep private. Surprisingly, Windows 11 does not have a simple “right-click and add password” button for standard folders.

To secure your files, you must use either the built-in Windows encryption tool (which requires a Pro license) or third-party archiving software (which works for everyone). Here are the two best ways to password protect a folder in Windows 11.

Method 1: Encrypting the Folder (Windows 11 Pro Only)

If you upgraded your PC to Windows 11 Pro, Enterprise, or Education, you have access to the Encrypting File System (EFS). This is a seamless security feature built directly into the operating system.

1. Open File Explorer and navigate to the folder you want to protect.
2. Right-click the folder and select Properties.
3. On the General tab, click the Advanced… button near the bottom right.
4. In the Advanced Attributes window, check the box next to Encrypt contents to secure data.
5. Click OK, then click Apply in the main Properties window.
6. A pop-up will ask if you want to encrypt just the folder or the folder and all subfolders. Select the option to include all subfolders and files, then click OK.

How EFS Works: You will not actually have to type a password to open this folder. EFS links the encryption directly to your Windows user account. While you are logged into your profile, the folder opens normally. However, if your spouse logs into their profile on the same PC, or if someone steals your hard drive, they will be completely blocked from opening those files.

Warning: Windows will prompt you to back up your file encryption certificate. Do this immediately. If you reinstall Windows without that certificate, you will permanently lose access to your own encrypted files.

Method 2: Creating a Password-Protected Archive (For Everyone)

If you are using Windows 11 Home, the EFS checkbox will be greyed out. Instead, the best and most secure workaround is to place your sensitive files into a compressed archive (a .zip or .7z file) and lock the archive with a password.

We recommend using 7-Zip, a free, lightweight, and highly respected open-source archiving tool.

1. Download and install 7-Zip from its official website.
2. Open File Explorer and locate the folder you want to protect.
3. Right-click the folder, hover over 7-Zip in the context menu, and select Add to archive….
4. A complex-looking window will appear, but you only need to look at the Encryption section on the right side.
5. In the Enter password box, type a strong password.
6. In the Reenter password box, type it again to confirm.
7. Check the box next to Encrypt file names. This ensures snoops cannot even see the titles of the documents inside the folder without the password.
8. Click OK at the bottom of the window.

7-Zip will create a new archive file (e.g., TaxDocuments.7z) in the same location. Whenever you try to open this archive or extract its contents, Windows will immediately demand the password.

Crucial Final Step: 7-Zip created a secure copy of your folder. The original, unprotected folder is still sitting there on your hard drive. You must delete the original folder (and empty the Recycle Bin) to ensure your files are actually secure.