How to Fix Dynamic Lock Not Working — PC Won't Lock When You Walk Away on Windows
Dynamic Lock not locking your PC when your phone leaves Bluetooth range, pairing issues, or feature not available? Fix Dynamic Lock on Windows 10 and 11.
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Main Troubleshooting Guide
How to Fix Bluetooth Not Working →Complete symptoms, causes, and step-by-step solutions
Symptoms
You might be experiencing this problem if you notice:
- •PC doesn't lock when you walk away with your phone
- •Dynamic Lock section shows "We couldn't find paired devices"
- •"Let Windows automatically lock when you're away" option missing
- •Phone paired via Bluetooth but Dynamic Lock doesn't detect it
- •PC locks intermittently — sometimes works, sometimes doesn't
- •Significant delay (1-2 minutes) before PC locks after leaving
- •Dynamic Lock worked before but stopped after a Windows Update
Common Causes
- ⚠Phone not paired via Bluetooth (WiFi pairing doesn't count)
- ⚠Bluetooth radio turned off on PC or phone
- ⚠Phone's Bluetooth not set to discoverable or not maintaining connection
- ⚠Dynamic Lock checks every 30 seconds — small delays are normal
- ⚠Phone too close to PC (even in a bag in the same room counts as "nearby")
- ⚠Bluetooth driver issues or power management turning off the radio
- ⚠Group Policy disabling Dynamic Lock feature
Solutions
Solution 1: Set Up Dynamic Lock
- 1First: pair your phone via Bluetooth (not WiFi or app):
- 2Settings → Bluetooth & devices → Add device → Bluetooth
- 3Put your phone in Bluetooth pairing mode
- 4Select your phone from the list and complete pairing
- 5Then: Settings → Accounts → Sign-in options
- 6Scroll to "Dynamic lock" → check "Allow Windows to automatically lock your device when you're away"
- 7Wait 30 seconds → walk away with your phone to test
Solution 2: Fix "No Paired Devices" Error
- 1If Dynamic Lock says it can't find paired devices:
- 2Verify pairing: Settings → Bluetooth & devices → your phone should be listed
- 3If phone isn't listed: re-pair it (remove → add again)
- 4On your phone: make sure Bluetooth is ON and connected to the PC
- 5Some phones: go to Bluetooth settings and tap the paired PC to reconnect
- 6Check Device Manager → Bluetooth: ensure the Bluetooth adapter is working (no yellow triangle)
- 7If Bluetooth adapter has issues: update or reinstall the driver
Solution 3: Fix Reliability Issues
- 1Dynamic Lock checks Bluetooth signal every 30 seconds:
- 2This means: up to 30-second delay before the PC locks is NORMAL
- 3If it's inconsistent: Bluetooth power management may be the issue
- 4Device Manager → Bluetooth adapter → Properties → Power Management
- 5Uncheck "Allow the computer to turn off this device to save power"
- 6Also disable this for the Bluetooth radio device in the same section
- 7Keep your phone's Bluetooth always on (not just "discoverable")
Solution 4: Troubleshoot Bluetooth Connection
- 1If Dynamic Lock still doesn't work:
- 2Remove the phone from Bluetooth devices and re-pair from scratch
- 3On your phone: forget the PC's Bluetooth pairing too
- 4Restart Bluetooth on both devices before re-pairing
- 5Update Bluetooth driver: Device Manager → Bluetooth adapter → Update driver
- 6Some phones have aggressive Bluetooth power saving — disable it:
- 7Android: Settings → Battery → Battery optimization → find Bluetooth → Don't optimize
- 8iPhone: Bluetooth generally stays connected reliably
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