You can freely delete existing content inside it and replace it with other content. This disk image will have almost the same capacity as the size of the original folder.To reopen it, follow the same process from step 1.To re-lock the protected folder, right-click and choose Eject “Folder Name.”.Important: Now, delete the original folder so that the content inside it is removed from your Mac and is only available inside this password-protected disk image.Double click to open it, and you will see the contents in it. It looks similar to an external pen drive. After you enter the password, you will see a disk image on the desktop.The saved password will fill in automatically if someone has your Mac or knows its password.) (Note: Do not check the box for ‘Remember password in my keychain.’ If you do, it may defeat the purpose. Type the same password you used while creating the disk image and click OK. You will be asked to enter the password.How to View and Re-Lock the Password Protected Folder on Mac You have successfully created a disk image (.dmg file) that is protected with a password. Important: Click on ‘Image Format:’ and choose read/write.Please enter the desired password, re-enter it to verify, and finally click on Choose. The second option here (256-bit) is slower. Important: For ‘Encryption:’ choose 128-bit AES encryption (recommended).Click on ‘Where:’ and choose the desired location to save the disk image. Optional: For ‘Save As:’ continue with the same name, or you may also change it.Now, select the desired folder you wish to lock and click on Choose.From the top menu bar, click on File → New Image → Image from Folder.Or, press Command + Spacebar to open Spotlight Search and type this app’s name. For this, open Finder → Applications → Utilities → Disk Utility. How Do I Password Protect a Folder on Mac? So, without further ado, let’s get to the steps and show you how to encrypt and password protect a folder on your Mac. Thankfully, it is effortless to put a password on a folder to shield it from others. You may have sensitive files like documents, images, videos, voice notes, that you want to keep private from friends and family (if they ever happen to use your Mac).

How to lock a folder in notes