How to lock any folder or file without any softwer bangla tutorial

How to lock your computer any folder with out any software?

In this video tutorial I am going to show you how you lock your folder without any software. So don`t wast time let`s get started. 

1. Go to any folder or file. 

2. Right click on your folder or file. 

3. Now click on bit locker. 

4. Now type your password and hit ok. 

5. Dubble click on your folder and cheak out. 

If you don`t understand then please see this video. Thank you.