Fred

Thank you for your quick reply. I did make a few attempts restoring the embedded backup header, to no avail. But just to be clear, such a header would have been automatically created along with the container, right?

Hello, everyone. My situation is like this: Last year, I created a bunch of VeraCrypt containers. They have been stored on an external hard drive that hasn't been used very much since then (but may have been short on empty disk space for a while). Yesterday, I could decrypt and open all but one of my containers. (The error message I get is the same as when I enter an incorrect password for a functional container.) What is your guess. Has the container been corrupted, or have I simply forgotten my...