How to block a website in your PC :
**************************
1.Open Windows Explorer and type in C:/Windows/System32/drivers/etc
2.Double-click on hosts and open the document using Notepad
3.Find this line "127.0.0.1 localhost" or "::1 localhost." and just below this line Paste "127.0.0.1 www.facebook.com"
You can replace www.facebook.com with any other website that you want to block.
**************************
1.Open Windows Explorer and type in C:/Windows/System32/drivers/etc
2.Double-click on hosts and open the document using Notepad
3.Find this line "127.0.0.1 localhost" or "::1 localhost." and just below this line Paste "127.0.0.1 www.facebook.com"
You can replace www.facebook.com with any other website that you want to block.