block unwanted sites

For eg you want to block www.xyz.com !




* Open the folder C:\WINDOWS\system32\drivers\etc


* There you will find a file named HOSTS


* Click on the file and press SHIFT and now right click on it .


* From the right click menu select Open with .


* Now, select Notepad to open the file from the list !


* Now, in the file under the line 127.0.0.1 localhost add another line as 127.0.0.2 www.xyz.com.


* Now, File>>Save !


For unblocking just follow the same procedure vice versa...!!!!!