Windows Host file to block Internet usage

How can I use the Host file for windows:

C:\windows\system32\drivers\etc    to block someone from using the internet at all or at the very least a few websites.  I opened the file and tried to edit within notepad and added the following however I can still access the websites.

#      127.0.0.1       localhost
#      ::1             localhost

127.0.0.1       www.bing.com
127.0.0.1       www.msn.com
127.0.0.1       www.yahoo.com
127.0.0.1       www.google.com
Twhite0909Asked:
Who is Participating?
 
jcimarronConnect With a Mentor Commented:
Twhite0909--
To block a few sites:
Delete the # in front of both
 127.0.0.1       localhost
and
  ::1             localhost

The HOSTS file would NOT be a good way to block all sites.  

If your objective is to block access to all sites you can use a Proxy Server ( IE Tools|Internet Options|Connections tab|LAN Settings) .
Or do not use an internet connection.
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Pete LongTechnical ConsultantCommented:
did you flush the dns cache?

ipconfig /flushdns
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tailoreddigitalCommented:
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pony10usCommented:
Sorry to ask the obvious but sometimes it's the little things that get forgotten.

1. When you saved the file did you make sure that it didn't save with an extension?

2. flush DNS like PeteLong suggests

3. Disable and enable IPv4 and IPv6
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