Posted by: kurtsh | May 21, 2017

HOWTO: Shorten the distance to activate ‘Dynamic Lock’ on Windows 10

imageWindows 10 Creators Update has a new feature on it called “Dynamic Lock” that enables a user to walk away from their PC with their phone, and at a certain distance, the PC will automatically lock the screen.  This is done by pairing your phone & your PC, and measuring the signal strength between the two.

HOW DO YOU SHORTEN THE DISTANCE BEFORE LOCKING?
The Dynamic Lock feature however has no configuration.  It’s either on or off, and there’s no way to adjust the distance upon which the computer locks itself… and the reason for that appears to be because every computer’s Bluetooth strength is different.

There’s an article however written by Rafael Rivera from Thurrott.com that shows how to adjust this in the Registry, if you’re so bold.  Simply put:

  • Create a registry key named HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NaAuth
  • Within that key create a DWORD value named BluetoothRssiMaxDelta
  • Set the value to an appropriate integer.  Rafael used 5 but your mileage may vary.

The issue however is that the registry tweak values are not the same for everyone.  Depending on the power of your PC’s Bluetooth transceiver, you may have completely different values from the next person.  He explains how he derived this value for himself and how you can do the same.

Read the article below.

(Note: Dynamic Lock will reduce both your PC’s & phone’s battery life.  I’ve read that this is as much as 25%-33% so be forewarned.)


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