Hi Friends..

Do you want to block some website to be browsed from personal computer which have windows operatiing system.

Ok then do this just Go to.

C:\WINDOWS\system32\drivers\etc

Open a “host” file in notepad. At the bottom of the line, you can see as per below
127.0.0.1 localhost

Add the following line at end now
127.0.0.1
www.blocksitename.com put there the site name to which you want to block.

Enjoy ..