PII caution: Please note that this is a public forum for users. I've removed some personal information to protect your privacy and security.
Hello Penni Wicks
The unlockRequired error might indicate the browser is unable to complete Personal Vault’s additional identity check. Since the Vault still opens on the iPhone and iPad, this appears limited to the Mac browser session.
Also note that personal Vault officially supports the latest Edge, Chrome, or Firefox; Safari is not listed as a supported browser.

Reference: Protect your OneDrive files in Personal Vault
Here are some suggestions you can try:
- Update Microsoft Edge, then sign out of OneDrive and close the browser completely.
- In Edge, open Settings > Privacy, search, and services > Clear browsing data. Clear cookies and cached files, reopen Edge, and sign in directly at OneDrive on the web.
- Temporarily disable ad blockers or privacy extensions, as they may block the separate verification window.
- Open Personal Vault and choose another verification method if available, such as Microsoft Authenticator, SMS, or email code.
- It is also recommended that you test the latest Chrome or Firefox.
Please let me know how it goes after trying these steps, and I'll be glad to continue looking into it with you.
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