Hi guys, it has been about one months that my laptop can't connect to internet, I can use skype and Yahoo messenger but I can't sign in to my Facebook, because my Google chrome, internet explore and mozila Firefox doesn't work anymore in my laptop, I really have no idea how to fix that, every time when I click the Google chrome, I,explorer or Firefox, it would be displays only only this world this site might has been removed permanently to other site, then if I tried to diagnose the problem, my windows can't find any clue about that, but if I use skype the internet works so well, I can call and chat with my friend but if try to search something in Google, oh damn nothing happens, I am so sad, I am now third year college I have a lot of project to do,any body please help me out,all your answers would be deeply appreciated, tnx a lot, stalyn

Are you using a wireless connection? If so you may have to run your installation disk for your wireless router again to be properly connected to your wireless router.

Do you have an icon in your system tray that shows your connection type? Check that. If it shows that you are connected to the internet then those programs should work unless you have excluded them in some way with a virus protection program.

It may be due to change in the hosts file in your system.
You will find a file here
C:/windows/system32/drivers/etc/hosts.txt
If you open it you can see some lines of text similar to below
Localhost. 127.0.0.1
It means if you type localhost it gets redirected to the given ip address
May be some virus program have changed this file.so you cannot browse any site.

Another problem may be DNS issue
Dns is domain name system which converts the address you type in the address to its ip address. This is done with the help of a dns server. Whose ip address is provided by the router. You can set you dns address in network properties
Try setting it to Google public dns
(4.4.4.4,8.8.8.8)
Or open dns ( ip address available on their site)