antivirus download error

[beach_horse]

I have a Dell Inspiron 1525 running Vista, I am trying to download an antivirus after McAfee expired, would prefer to use avast, I get an error saying unable to read from server, what am I doing wrong. I have downloaded this on other computers with no probs. If Raptor gets this, don't yell at me I googled the tar out of this dilemna,,,thanks for your help

[chyrl]

Is your computer virused or corrupted?

Cause it's either that you're computer is virused or corrupted for such error to occur during download.