- Go to Start and then Run.
 
- Type in this C:\WINDOWS\system32\drivers\etc
 
- Now you will see file name Host open that in Notepad.
 
-  Below "127.0.0.1 localhost" add IP address of site to be blocked.
 
- To unblock any site just reversed the process.
 
 
 EXAMPLE 
     127.0.0.1 localhost
     69.171.224.14    (This will block Facebook)
     NOTE: For each site you block just add "1" to the IP (127.0.0.1)
 
 
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