I would send an e-mail to Norton Customer service. They would surely want to assist you.
If you had bought licence,you can download software from their official website.
After buying a computer software you can download to other computers. Sometimes when reaching a limit you will have to pay.
Of course. When you download an antivirus software, you really download the installer of that antivirus not the program. When you double-click on it for install, only then the antivirus program will be "personalized" for that computer, and after that it can't be copied to another computer. When a software is installed some files will be copied in system's folder not only in that software folder.
Yes. You can download antivirus software (there are free ones can do it), update the virus definitions, scan your computer with it, and delete/remove it or quarantine it.
To answer that question is very difficult. To be honest there are hundreds of legitimate and rogue antivirus programs. Now ofcourse I am not telling you to download rogue antivirus. What I am saying is to read the system requirements of every program you download and it should tell you what operating system is is available for.
Simply download the installer for the antivirus, then run it. With some antivirus software you don't even need to install it!
It's essential to have antivirus for your computer because it will stop virus from infecting your computer. I recommend AVG, here's a link to its download: free.avg.com/us-en/free-antivirus-download
download avira antivirus on her computer.
Fake antivirus sites using ie6 or ie7 to download it without permission.
Install it just as you would to one computer. If it's a download, download it on both computers. If it's a CD-Rom, etc. just download it on Computer A, remove the disc and do the same on Computer B.
try not to download files that might be unsafe and use an antivirus to scan your computer
download it BUT IT CAN HARM SOME COMPUTERS