When it comes to security and how to secure your computer or Pc, there are numerous articles internet concerning how to secure your PC. In this context, we will not be talking about how to secure your PC but something different which is how to unlock your computer using your smartphone, sounds cool right? This guide on how to unlock computer using Android phone is pretty simple and it goes as follows
Rohos for Android
Rohos for iPhone
Rohos for Windows
Rohos for Mac Os

How to unlock your computer with the help of your android smartphone, you will need a Rohos Logon Key software installed both on your Android and Computer to gain access you computer.

Step 1. Download the Rohos Logon Key Software in your device which you want to pair out with smartphone.

Step 2. Now launch the program in your windows and you will see screen like below.

Step 3. Now there click on Options there and set the settings as shown on the screenshot below.

Step 4. After selecting all the options click on ok.

Step 5. Now select the setup a key there and the select the QR code method to verify your key there.

Step 6. Now download the mobile app from the above link and scan the QR code from that app displaying on the screen and your mobile will detect your PC.

Step 7. Thats it you are done now your pc is authenticated with your smartphone and every time after unlocking from windows screen you will need your smart device to unlock the second authentication process.

This is a very cool way to secure your computer as if someone get to know your login password you computer will not get open until it get the security key that is your smartphone that will be always with you.



Direct post [source]:-
http://www.techzvibes.xyz/2017/09/how-to-unlock-your-computer-using-your.html

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Nice one.

Can this work on Tecno Spark

am sure its will bro, you can try it ya self and see weather it's will.