Blocking Facebook on Your Computer

1. Go to Start > Programmes > Accesories

2. Right click on Notepad and run it as Administrator

3. Now open Host file by clicking on File > Open and locate to following address
    C:\WINDOWS\system32\drivers\etc

4. Then just below # 127.0.0.1 localhost paste following code
    127.0.0.1 login.facebook.com
    127.0.0.1 www.facebook.com
    127.0.0.1 apps.facebook.com
    127.0.0.1 blog.facebook.com

5. Now SAVE the File and Done !