Hello, thank you for reaching out to Microsoft Q&A.
- Could you please share the exact error message or issue you’re experiencing when trying to unlock your Personal Vault during the OneDrive restore process?
- Are you able to unlock your Personal Vault normally by verifying your identity?
- Also, have you tried using a different browser or device to check whether you can restore OneDrive to an earlier version?
Use Incognito mode to open a private browsing session. Then, sign in to OneDrive with your Microsoft account and try restoring OneDrive again.
Make sure you’re running the latest version of Windows and that your browser, such as Microsoft Edge or Firefox, is up to date. Then, open a private browsing window and sign in to OneDrive to see if you can restore it.