HOW TO Block Website 

so Follow Below steps:

1.

Click

Start->All Programs->Accessories->Command Prompt.
2. Click Command Prompt This will open a DOS command window.
3. Type: notepad C:/Windows/System32/drivers/etc/hosts
4. Notepad will be opened and Locate the line 127.0.0.1 localhost
5. To block the website google.com for example, just add this text under

127.0.0.1 localhost:

127.0.0.1 www.

facebook

.com
127.0.0.1 www.google.com

6. Save the notepad file and close the command prompt and restart your web browser and it will work.