It is very much important or even safe to lock your computer when you are not in front of it. As you may have a lot of personal and very important information, you can’t give a chance to anyone to play their tricks. With Windows 10 Microsoft added a Dynamic lock feature that works by pairing your phone to the PC using Bluetooth and will automatically lock the computer when you step away from it.
But don’t worry if you are still using the old operating systems of Microsoft like the Windows 7 or 8.1, then don’t worry, there is a software program to help you. A locked PC is a safe PC.
Go through the link below to get that software on your PC
http://www.softpedia.com/get/System/System-Miscellaneous/Bluelock.shtml
The application is called Bluelock which is a very simple tool that has been there for many years. For this, your system should have Bluetooth and you should have your phone always handy. After you download the application from the above link, just open it. Turn Bluetooth on on both your PC and Phone, then it will list your device in the Discovered Bluetooth Devices window. Double click on it to make your phone the lock to your PC. Adjust the time slider to your required time after which you would like to lock the PC. That means once you are away for that particular period of time, it will be locked.
So, do try this simple application to experience some safety and security.