Unknown render failure when trying to access Personal OneDrive Vault

Rick Dulaine 20 Reputation points
2026-09-09T10:50:12.3733333+00:00

I am able to access my normal OneDrive account info on my PC just fine. But, when I try to access the Personal Vault within One Drive on my PC using my Chrome browser, I am now getting an error after entering my authentication to gain access: "Unknown render failure. You need to unlock your Personal OneDrive Vault to gain access Retry button Correlation ID: 377e39a2-90d9-2000-1fc0-f340c5c05982. I have tried accessing my Personal Vault several times yesterday and this morning without success and it worked fine a few days ago. What does this error mean and how can I resolve it? I am able to access my OneDrive Personal Vault on my Android phone as well as using the Microsoft Edge browser on the same PC.

Microsoft 365 and Office | OneDrive | For home | Windows
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AI answer

2026-09-09T10:50:29.28+00:00

Since Personal Vault opens in Microsoft Edge on the same PC and on Android, the Vault itself and the account authentication are working. The failure is most likely specific to Chrome’s browser session or cached site data.

Try this in order:

  1. Open Chrome in Incognito mode and sign in to OneDrive, then try opening Personal Vault.
    • If Personal Vault opens there, the issue is with Chrome’s cached data or session state.
  2. Clear Chrome’s browser cache, then sign in again and retry Personal Vault.
    • This is the recommended next step when access works in a privacy mode but fails in the normal browser session.
  3. If the Vault opens but shows that it is not up to date, unlock Personal Vault, close any files stored in it, and wait for sync to complete before locking it again.
    • If there are many large files, increase the Personal Vault auto-lock time in OneDrive by selecting Settings from the menu, then Account, then changing the Personal Vault auto-lock time.
  4. Make sure the OneDrive app is up to date on the PC.
  5. If sign-in or access still fails after clearing Chrome cache, check whether a firewall, VPN configuration, or internet provider is interfering with OneDrive access.

What the error means in this case:

  • “Unknown render failure” is consistent with the browser failing to properly load the Personal Vault page after authentication, not with a general OneDrive outage for the account, because access still works in Edge and on Android.

If Chrome still cannot open Personal Vault after Incognito mode and cache clearing, use Edge as a workaround and contact Microsoft Support for the browser-specific failure.

References:

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  1. Rick Dulaine 20 Reputation points
    2026-09-09T11:19:53.6666667+00:00

    Thank you for your response. I was able to log into the Personal Vault using Incognito mode. I tried clearing the Chrome browser cookies and cache for the past 24 hours, but that didn't work. So, I had to clear it for the past 4 weeks and that did solve the problem I am able to access the Personal Vault normally again.

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