Block website without any software

How to block any websites without softwares..??

1. To block websites we need to edit host file which is usually in C:/Windows/system32/drivers /etc
2. To edit host file open notepad click open and go to  C:/Windows/System32/drivers /etc
3. Open the host.file which looks like image
4. Now enter 127.0.0.1   and  the "website you want block " without quotes

5. You can add all the websites that you want to block  in the same format and finally click save 
That's it we have successfully blocked  websites by editing the hosts file
6. If you find it difficult to do it manually every time  you can make a batch file to block  websites