How to Configure Dynamic Lock With a Phone on Windows 11

Quick fix: Pair phone via Bluetooth: Settings → Bluetooth & devices → Add device → Bluetooth → pick phone. Once paired: Settings → Accounts → Sign-in options → Dynamic Lock → tick Allow Windows to automatically lock your device when you’re away. When phone moves away (out of Bluetooth range, ~30 seconds), Windows auto-locks.

Dynamic Lock auto-locks Windows when paired Bluetooth device (phone) moves out of range. Useful for: walking away from desk; security in office. Requires Bluetooth pairing first.

What causes this need

Security: forgot to lock PC, walked away. Dynamic Lock auto-locks when phone leaves range. Phone is proxy for “you nearby.” Once phone > 10-20 feet away, Windows locks.

Method 1: Pair phone via Bluetooth

The first step.

1. Open Settings → Bluetooth & devices.
2. Click Add device.
3. Pick Bluetooth.
4. On phone: enable Bluetooth, make discoverable.
5. On Windows: phone appears in list. Click to pair.
6. Confirm pairing code on both devices.
7. Phone now paired.
8. For phones (iOS / Android): each behaves similarly. Specific steps in phone’s Bluetooth settings.
9. For checking: Settings → Bluetooth & devices → Devices → phone listed.

This is the pairing.

Method 2: Enable Dynamic Lock

The standard route.

1. Open Settings → Accounts → Sign-in options.
2. Scroll to Dynamic Lock section.
3. Tick Allow Windows to automatically lock your device when you’re away.
4. Windows associates with the paired Bluetooth device.
5. When phone moves out of range: ~30 seconds later, Windows locks.
6. Lock screen shows; need to sign in to unlock.
7. To disable: untick the option.
8. For multiple paired devices: Dynamic Lock uses currently nearby ones.

This is the standard setup.

Method 3: Configure timing and behavior

For tuning.

1. Dynamic Lock timing isn’t directly user-configurable. Microsoft uses ~30 seconds out-of-range detection.
2. For more aggressive auto-lock: Settings → Accounts → Sign-in options → If you’ve been away, when should Windows require you to sign in again? → pick shorter time.
3. For combined with Dynamic Lock: PC locks via Dynamic Lock + requires immediate sign-in.
4. For phone running out of battery: Dynamic Lock activates. Sign-in required when you return.
5. For multiple phones: pair multiple. Lock triggers when all are out of range.
6. For Bluetooth interference: keep paired devices charged and connected. Weak signal triggers false lock.
7. For chronic false locks: ensure phone is paired (not just visible). Re-pair if needed.
8. For external Bluetooth dongles: more flaky. Built-in Bluetooth more reliable.

This is the tuning.

How to verify the fix worked

• Settings → Sign-in options → Dynamic Lock ticked.
• Pair phone via Bluetooth confirmed.
• Walk phone out of range: PC locks within 1 minute.
• Return: sign-in required.

If none of these work

If lock doesn’t trigger: Bluetooth not on: ensure Windows Bluetooth enabled. Phone Bluetooth off: ensure phone Bluetooth on when leaving range. Bluetooth out-of-range timing: roughly 10-20 feet typical. For chronic false-locks: phone losing connection randomly. Try different position. For chronic non-locks: PC may not detect phone leaving. Re-pair phone. For Windows Hello hardware: Hello requires PIN backup. Configure PIN first. For headset / earbuds: same pairing principle. Use phone for stable connection. For corporate-managed PCs: Group Policy may force Dynamic Lock.

Bottom line: Pair phone via Bluetooth (Settings → Bluetooth & devices). Then Settings → Accounts → Sign-in options → Dynamic Lock → tick auto-lock. PC locks when phone leaves range.