How To Block Any Website From Your Computer Without Software

1st Step:
Click On "My Computer" Open "C" Drive Click On "Windows" Then Click On "System 32" Select "Drivers" Click On "etc".

2nd Step:
After You Reaching This Way You See a File Named "Host" . 
Right Click On File Select "Open With Notepad" .

3rd Step:
You Can See Host File in Notepad, Go To The Last Line Of Text (Local Host), Then Press Enter To Move The Cursor To The End Of File Like "127.0.0.1" And Press The Space Bar From Your Keyboard.

4th Step:
Now You Can Type The Specified Address e.g: www.youtube.com" to Block Website.

5th Step:
Click On New Then Click On Save File And Ignore Any Message From Windows You Get.

6th Step:
Open Your Browser And Verify The Website is Blocked Or Not.