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I can ping but no aplication is able to use internet!

Last response: in Networking
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February 8, 2013 6:17:45 AM

hi
my system was infected and was downloading and uploading on its own! i installed all kind of anti virus and programs and finally i deleted the virus !
now when i connect to connection i can ping all sites!
but all my browsers (Opera , Chrome , fireFox , IE) give me error after trying to open a site!
also my skype and all other aplication do the same!
my internet download manager think im not connected !
i tryed giving DNS manually and i checked all options ! i tryed restarting all services and ..
i dont have restore point! so dont say restore it!
and i dont want to install another windows!
it seem that the antivirus deleted some important file that were infected! ( i used Rescue mode BitDefender )
and now there seem to be problem !
is there anyway to fix this or repair the windows? i used Microsoft Repair Windows but ... it didnt work!
i also tryed SFC\scannow but ...
and entering IP doesnt work either! (like enter the IP for google in browser not the adress )
im getting crazyyyyyyyyyy! please help me!!!!!!!!!!!!
Thanks
System Properties :
Windows 7 64bit
internet network : (i use a Lan to connect to my Modem and i make a connection (Broadband) to connect the ISP!
February 8, 2013 11:10:40 AM

If you can ping by name then you do not have a DNS issue. Enable the line mode telnet command in windows if you have not. From a line mode prompt telnet to a site such as tomshardware.com 80

It will not work but if you press entry a couple of times it looks different than a connection that is completely blocked.

If you are completely blocked I would be checking your firewall settings. If its works via telnet but not from the browsers I would be checking the settings in the browser. Things like proxy servers send to mess things up the most.
February 8, 2013 12:18:35 PM

bill001g said:
If you can ping by name then you do not have a DNS issue. Enable the line mode telnet command in windows if you have not. From a line mode prompt telnet to a site such as tomshardware.com 80

It will not work but if you press entry a couple of times it looks different than a connection that is completely blocked.

If you are completely blocked I would be checking your firewall settings. If its works via telnet but not from the browsers I would be checking the settings in the browser. Things like proxy servers send to mess things up the most.



as i said before , i checked all settings and of course there is no firewall!
i can ping through run (like : ping google.com -t)
but nothing else can use internet ! its like internet is 100% block for all applications ! (not only browsers!~)
!