Personal Vault is a special folder in OneDrive that provides an extra layer of security for storing sensitive or important files and photos. It is a protected area in OneDrive that can only be accessed with a strong authentication method or a second step of identity verification, such as your fingerprint, face, PIN, or a code sent via email or text message. Personal Vault automatically locks after a period of inactivity and requires unlocking to access files again. All documents, photos, and videos in Personal Vault are easy to access from onedrive.com, your PC, or other capable devices.

To set up Personal Vault, you need a web browser with the latest version of Edge, Chrome, or Firefox. After setting it up, you can access Personal Vault on each device where you want to use it. Personal Vault is available to all OneDrive users, but the number of files you can store in it depends on your OneDrive storage plan. For example, the free version of OneDrive only lets you store three documents in the Personal Vault, but you can easily circumvent that restriction by adding your documents to a ZIP or other archive file first.