You can prevent any web page in windows windows vista, seven and xp with this small technique. You do not need any application for it and when you are trying to start any particular web page in internet browser like ie, Firefox, opera, chrome or opera, it does not start.
Follow these instructions
Browse C:\WINDOWS\system32\drivers\etc\
Find the computer file known as “HOSTS”
Open it in notepad
under “127.0.0.1 regional host” and add web page like this-
127.0.0.1 www.example.com
127.0.01 example.com
If you want to prevent example.com, add both range your serves computer file because some of the web page also start without www.
http://www.example.com
http://example.com
If you do not modify your computer file straight in windows windows vista & seven, first you need to duplicate your serves computer file in other drive( except c drive) and then modify and substitute your serves computer file with unique coordinator computer file.
You can also comprehend with this example you can see here when you want to prevent search engines, add both sector -
www.google.com
www.google.co.in – it is a standard sector for Native indian area.
Now examine your internet browser and that site will no more be available.