You double-click a Recall snapshot from yesterday’s spreadsheet work, and instead of the document, Windows greets you with a demand: enter your Windows Hello PIN. You type it, view the snapshot, close Recall, and ten minutes later the prompt is back. Recall encrypts every snapshot it takes and deliberately gates viewing them behind Windows Hello, so the PIN prompt is a security feature rather than a bug. When it appears constantly, or errors out entirely, something in the Hello setup needs attention.

The most common trigger is an incomplete Hello enrollment. Recall can only decrypt snapshots with the same Hello identity that protected them, so a missing PIN, a PIN added under a different account, or a sign-in method removed mid-setup all leave Recall unable to complete its check. Users who hardened their privacy settings sometimes hit this too, and our guide to Recall’s privacy controls explains how those toggles interact with snapshot storage.

Less obviously, the account type matters. Recall requires a Microsoft account-backed profile with Hello enrolled, and local accounts that never completed Hello setup are a frequent cause of the demand loop. Our walkthrough of the Microsoft account requirement covers that side of the problem. Below, we work through the full repair path in order: confirm Hello is healthy, re-enroll the PIN if its credential container is damaged, and reset Recall’s own data protection when the encryption binding itself is stale.

Why this happens

  • No Windows Hello PIN enrolled: Recall’s encryption is bound to a Hello identity at setup. If you skipped the PIN during Windows setup or use a local account without Hello, there is nothing for Recall to verify against, so the prompt never resolves.
  • PIN enrolled under a different user or account: snapshots are encrypted per user profile. A PIN belonging to another Windows user, or a profile that switched from a local to a Microsoft account, produces a key mismatch that Recall cannot decrypt.
  • Corrupted Hello credential container: the TPM-backed container holding Hello keys can corrupt after BIOS updates, failed PIN changes, or disk imaging. Windows may still accept the PIN at the lock screen while Recall’s cryptographic check fails.
  • Windows Hello blocked by policy: on work or school devices, administrators can disable Hello sign-in or require specific methods. Recall keeps asking for a PIN that policy forbids, which looks like a loop but is actually a block.
  • Stale encryption binding after a feature update: major updates re-protect Recall’s snapshot store. If the Hello container was recreated during the update, old snapshots stay locked until Recall re-binds to the new identity.
  • Snapshot database left locked: a crash or forced shutdown can leave Recall’s encrypted database in a locked state. The only safe recovery is fresh Hello authentication, so Recall demands the PIN again before touching the store.

How to fix it

Work through these in order — diagnose first, then act.

Fix 1: Confirm a Windows Hello PIN is actually enrolled

Start with the basics: a surprising number of these cases are a PIN that was never finished. Windows sometimes shows Hello as available when enrollment only partly completed, and Recall is stricter than the lock screen about what counts as valid.

  1. Open Settings with Win + I and go to Accounts, then Sign-in options.
  2. Look for PIN (Windows Hello). If it says Add, no PIN exists, so click Add and complete the setup wizard.
  3. If a PIN is listed, click it and confirm Windows shows Change and Remove, which proves enrollment completed.
  4. Restart the laptop so the TPM re-reads the Hello container cleanly.
  5. Open Recall and click any snapshot; the PIN prompt should now succeed instead of looping.

Fix 2: Remove and re-enroll the PIN

When the PIN works at the lock screen but Recall keeps rejecting it, the Hello credential container is usually damaged. Deleting the PIN and creating it fresh forces Windows to build a new container in the TPM, which re-binds Recall’s encryption check to a healthy key.

  1. Go to Settings, Accounts, Sign-in options, then PIN (Windows Hello), and click Remove and confirm.
  2. Restart the laptop. Do not skip this step, because the TPM clears the old key material only across a reboot.
  3. Return to Sign-in options, click Add under PIN, and set a new PIN.
  4. Sign out and back in once with the new PIN to confirm the container is healthy.
  5. Open Recall and verify a snapshot; if the loop is gone, the old container was the culprit.

Fix 3: Switch to face or fingerprint to reduce friction

If typing a PIN dozens of times a day is the real pain rather than an error, a biometric method makes the Recall gate nearly invisible. Most Copilot+ laptops ship with an IR camera or fingerprint reader that Hello can use for the same check.

  1. In Sign-in options, check Facial recognition or Fingerprint recognition under Windows Hello.
  2. Click Set up and follow the enrollment wizard; good lighting helps the IR camera scan accurately.
  3. If the camera is not detected, check your manufacturer’s support page for an IR camera firmware update. Dell’s support site lists camera drivers by model, for example.
  4. Once enrolled, open Recall and confirm the prompt now accepts a glance instead of a typed PIN.
  5. Keep the PIN enrolled as a fallback, since Hello requires it before biometrics can be set up.

Fix 4: Fix the account mismatch

Recall encrypts snapshots with the Hello identity of the profile that captured them. If you switched from a local account to a Microsoft account, or you sign in with a different account than the one that took the snapshots, the keys will not match and the prompt loops forever.

  1. Open Settings, Accounts, Your info, and confirm which account type is signed in.
  2. If you recently switched account types, sign in with the original account that captured the snapshots and test Recall there.
  3. For snapshots you no longer need, delete Recall’s stored data under Settings, Privacy and security, Recall and snapshots, Delete snapshots.
  4. Re-enable Recall under the current account so new snapshots encrypt with the current Hello identity.
  5. Going forward, keep one consistent sign-in identity on the laptop to avoid splitting the snapshot store.

Fix 5: Reset Recall’s data protection binding

After feature updates, Recall’s encryption binding can go stale even when Hello itself is fine. Windows keeps a separate data-protection association for Recall’s snapshot store, and refreshing it forces a clean re-bind to your current Hello identity.

  1. Open Settings, Privacy and security, then Recall and snapshots.
  2. Toggle Recall off, wait about a minute, then toggle it back on.
  3. When prompted, complete Windows Hello verification to re-protect the store.
  4. If snapshots still fail, use Delete snapshots to clear the old encrypted store, then let Recall rebuild it fresh.
  5. Restart and open Recall; new snapshots should now open after a single Hello check.

Fix 6: Update Windows and drivers, then re-test

Hello and Recall both depend on platform components that Microsoft patches regularly: TPM firmware interfaces, the Hello credential provider, and Recall’s own servicing updates. A machine that has not updated in months is a common home for this bug.

  1. Go to Settings, Windows Update, and install every pending update, including optional driver updates.
  2. Check your manufacturer’s support page for BIOS and TPM firmware updates, since outdated firmware is a known cause of Hello container corruption.
  3. Microsoft documents current Recall requirements on the official Windows support page ; confirm your build still meets them.
  4. After updating, re-enroll the PIN once using Fix 2 so it binds to the patched components.
  5. Test Recall with several snapshots across different days to confirm the loop is gone.

Closing

Recall’s PIN demand is doing its job: keeping an encrypted visual history behind a hardware-backed identity check. When that check breaks, the fix is almost always above: finish the Hello enrollment, rebuild a damaged container, or re-bind Recall’s store after an update. If you run other AI features on the same laptop, you may also notice Live Captions driving CPU usage up during calls, or the Copilot canvas refusing to load ; both have dedicated fixes.

Frequently asked questions

Why does Recall ask for my PIN every single time I open it?
Recall encrypts its snapshots and requires Windows Hello verification before decrypting them. One check per session is normal; constant re-prompts mean the Hello credential container or Recall’s encryption binding is damaged, so work through the re-enrollment and re-binding fixes in this guide.
Can I use Recall without setting up a Windows Hello PIN?
No. Microsoft requires Windows Hello, with a PIN at minimum, as the decryption gate for snapshots. Without an enrolled Hello method, Recall cannot verify your identity and will not display the timeline at all.
I forgot my PIN. How do I reset it so Recall works again?
Go to Settings, then Accounts, then Sign-in options, open PIN (Windows Hello), and choose the option for a forgotten PIN to reset it with your Microsoft account password. Restart the laptop, then open Recall and verify once more.
Is my PIN sent anywhere when Recall asks for it?
No. Windows Hello verification happens entirely on your device, backed by the TPM security chip. Your PIN never leaves the laptop, is never sent to Microsoft, and is never stored alongside your snapshots.