Question : Cant download files from internet.

Good morning everyone. I have a computer that does not allow downloads from the itnernet. Whether it be an attachment from an email or a file from an FTP server, I receive error messages that the comptuer is not connected to the internet. This is quite confusing as you can imagine because I am writing this question from the very computer.

Originally, when my friend brought it to me, I suspected a virus. I installed the free versions of Malwarebytes and AVG and they foud nothing more than cookies and some inconsequential spyware. Something itneresting though. When I attempted to update Malwarebytes, I received the error message that the computer was not connected to the internet. However, AVG was able to update its definitions.

After uninstalling every last bit of software that I could imagine would be a problem, I then decided that IE 8 might be the culprit. I ran through its settings, and after finding nothing that points towards blocking downloads, I decided to uninstall it. So I am now on IE7.

Below is one of the errors I receive. ANy help on this would be greatly appreciated.

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Windows Internet Explorer
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Internet Explorer cannot download alberto.pdf from webmail.att.net.



Internet Explorer was not able to open this Internet site.  The requested site is either unavailable or cannot be found.  Please try again later.
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OK  
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Answer : Cant download files from internet.

Does IE7 work?
Can you try another browser, such as Firefox?
Have you tried Tools -> Options, Advanced Tab, then Reset button?