Most of the offices, schools Facebook, Orkut, youtube are the top of the Blocked websites. So if they have blocked your website you can unblock it by just following the simple tutorial below 
- block a website on your computer
Blocking An Website
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we are first Blocking a website at your computer.
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Click Start Button and click “Run”
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Type the following code in the “run” and press “ok”
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A Pop Window is Opened.
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You have to add ” 127.0.0.1 facebook.com” (without quotes) . Add this in the Notepad
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Press CTRL+S to save the file and restart the browser
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Finally you blocked the facebook website
notepad %windir%\system32\drivers\etc\hosts
UnBlock An Website
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Follow the Above 4 Steps.
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In the next step Delete the website Which has blocked.
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Restart the Browser.
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Its done , you have unblocked facebook at your college,offices etc
We don’t have access to run program in my Institute computer….
i will see anything there to run the programs..
don’t worry
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But this is not how the sites are blocked right?? Im not sure abt schools, but in companies they use something called “firewall” for which you have no control at all.
LO – I guess I would block some sites.
Tried On XP SP2
Not Working…
used : Firefox, IE8, Opera
(I have Written “notepad %windir%\system32\drivers\etc\hosts”
instead of
“notepad %windir%system32driverset\hosts”
hi friends pliz hellp me i cnt opan facebook block the may pc … so pliz hellp me …………..
byee
have nice day
tack care
(it may work) go the same file and you will get a file named proxy. just enter one more website you want to see in the place where good networks are written. then you will be able to open that site
hi friends
plizz…hellp me i cnt opan facebook my pc …
block the site my pc ………
so pliz hellp me
which operating system are you using , then only i can give solution
i couldnt delete that block faceboo stuffs???? wht should i do???
PLEASE SEE THIS IS THE NOTEPAD FILE IN OUR OFFICE. HOE I CAN UNBLOCK THIS ALL SITES?
# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a ‘#’ symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
# localhost name resolution is handled within DNS itself.
# 127.0.0.1 localhost
# ::1 localhost
127.0.0.1 activate.adobe.com
Abishek,
Try this tutorial
http://softwarebuzzer.com/2012/06/how-to-access-blocked-websites-at-work-colleges/
Dear Suresh I am working in a TESCO company and i am not able to use Facebook It was blocked by IT department..
and Our IT department using WEBSENSE security system..
thanks,,
someone that does not like music blocked thismusic website and I want to unblock it,so please help me
same problem.
I have blocked a site in my PC. But now I can’t unblock this. i can edit the HOSTS file but can’t save. so what can I do now??
awesome…….. just awesome…. still can’t believe i unblocked a site
thanks for this website it helped me unblock websites my boyfriend blocked on me
Anytime mate
Glad it helped your problem 
koi bhi site nhi khul rha h
Boss really thanks and very useful for me….thanks..:)
I am trying to unblock twitter. I followed all the steps but it won’t let me save on the final step. It says my administrator won’t allow it. This is my personal computer. My teen didn’t want me to see his twitter account and got on my computer.
i have followed all the steps to unblock but it is not unblocked.please include the image for the data that how much i have to delete from that notepad as you have shown in how to bllock it.
is it possible that sites are only blocked in my computer and then when i try to unblock it using your methods it doesn’t appear that its blocked on my computer, but my computer is the only one blocked, thanks
We don’t have access to run program what to do
i cant unblock it. it is giving me a pop up that the path is not correct