How to lock a folder so no one can access it..

Hey friends are your folder's are getting accessed by someone..
No worry Today I have bring a best solution for locking a folder without any password.
First go to your folder just click on it and in the upper tab of windows click on copy path or you can also copy the path from the folder properties.
Now just open your Command Prompt and run it as administrator and then type
cacls "YOUR FOLDER PATH IN COLONS" /E /D everyone
and hit enter now you can try it the folder is inaccessible to everyone who use the computer.
and when it comes to you just type in Command Prompt
cacls "FOLDER PATH IN COLONS" /E /P everyone:f
You have done it.
Thanks for visiting..