Determines if the RSSI value dips below a certain threshold.

Disconnects from the Bluetooth-paired phone.

Retrieves the average Received Signal Strength Indication (RSSI) for that connection.

Connects to the Bluetooth-paired phone.

Rivera tested this facility and observed that it depends on an ongoing set of activities repeated multiple times per minute. According to the same source, some OEMs refer to this feature a 'proximity lock.' Whatever it's called, it's a handy new feature that leverages the common situation where most PC users not only have mobile phones, but tend to keep those phones on their persons at all times (even when they're not working on their PCs). According to an excellent story for by Rafael Rivera entitled ' Using and Calibrating Dynamic Lock in Windows 10 Creators Update' (2/20/17), this new OS feature is known to some as 'Windows Goodbye,' in contrast to the Windows Hello technologies that work with biometric recognition of fingerprints or face scans. Simply click the checkbox, and you've enabled Dynamic Lock! How Dynamic Lock worksīasically, Dynamic Lock polls the strength of the signal between your PC and the paired phone at a regular interval. Simply click the checkbox under the Dynamic Lock heading that reads 'Allow Windows to detect when you're away and automatically lock the device,' as shown in this screen snippet: Ed Tittel Once pairing is complete, you can turn on Dynamic Lock by visiting Settings –> Accounts –> Sign-in options. When a phone is paired with a Windows 10 PC, an entry like the 'iPhone' item shown above appears in Devices and Printers. To do this, open 'Devices and Printers,' then click 'Add a device.' Once the phone has been paired with your PC, you'll see something like this under the 'Devices' heading in this control panel widget (here, my iPhone is paired with my Dell Venue hybrid tablet PC). To begin, you must pair your phone with your Windows 10 PC. Thus, Dynamic Lock makes a dandy new security feature in Creators Update, one that most business users (or their IT departments) will find worth turning on and using. That is, if the phone you've paired with your PC (it works for laptops, notebooks, tablets and desktops) is not found within radio range of your PC, Windows 10 turns off the screen and locks the PC after 30 seconds have elapsed.

It's called Dynamic Lock, and lets you control access to your PCs based on how close they - and your Bluetooth-paired phones - are to them.

When Microsoft released Build 15031 of the Windows 10 Insider Preview on February 8, 2017, it added a new OS feature for Bluetooth-equipped devices.

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