To download Norton antivirus onto a second computer, you must log into your Norton account. This account would have been created when you first installed the software. You can access the product key and serial number through your Norton account which you will need in order to download the program onto a second computer.
Answer
As you most likely know it is very important to keep your anti-malware software up to date. This is because updates help to protect against new malware and exploits. In Norton Antivirus there are two ways to manually update virus definitions. The first is to open the Norton Antivirus user interface. This is the window that appears when you click the Norton Antivirus shortcut on your desktop. Then click the LiveUpdate tab. Then click update.
The second and more complicated update method is open your web browser and navigate to the Norton Antivirus virus definitions page. You could Google this but I am going to put the link at the end of this answer. Go through the motions and then click the Definitions (which is in red under the words File-Based Protect Traditional Antivirus). Then you will be taken to a new webpage and you will then click the executable file (.exe) in green. Keep in mind this method is more complicated and I would recommend it.
You can easily download Norton Antivirus from download-sites like chip. Additionally you can download it on the internet presence of Norton. There are alternatives like Microsoft Security or Anivirus.
It is difficult to provide a definite answer as to how often Norton Antivirus updates come out. It is found that there are updates provided when there are issues that need to be addressed. Technology is always changing, and if the antivirus requires an update, Norton will make an update for the issue and release it to their customers when it is available. If it is installed on your computer you will likely update at least once a day.
Install it from the disc that came when you bought Norton AntiVirus. If it came bundled with the computer than you may need to download it again from the Norton website.
There are many competitors for the Norton Antivirus brand. Some of the more notable ones are McAfee, a pay antivirus program, and Avast, a free antivirus program available for download.
Software applications, particularly ones like antivirus, should only be downloaded from their manufacturer (Norton). This is important, as fake antivirus programs won't detect themselves as viruses, making it hard to notice that one's been infected. Norton offers the free download from their website.
There are a number of sites that allow you to download software. This can range from Norton Antivirus to Microsoft Word.
Norton Antivirus software packages can be downloaded freely from the official Norton website. It should be noted that these are either 30 day trials or are basic packages and may not include certain protections.
Antivirus software automatically updates everyday by using your network connection. Make sure your software is updates at least once a week because in one week there could be 400 viruses made.
download an antivirus software i recommend norton
If you had bought licence,you can download software from their official website.
By getting Norton Antivirus and turning on SONAR protection, and download intelligence.
More or less. Norton AntiVirus 2009 hits all the right security notes, and its superior protection technologies might even win back some jaded anti-Symantec folks, though for some, technical support may continue to frustrate. With their 2008 version last year, Norton moved towards constant program updates & free upgrades while you have a current subscription. So, when next year's new version comes out you can upgrade at no additional cost as long as you have a current Norton Subscription.Also new in the Norton AntiVirus 2009 version is the Pulse Updates feature that automatically downloads new Virus Definitions every 5-15 minutes. This new feature gives you the most up-to-date protection of any antivirus program available. http://www.antivirusroot.com/Norton-AntiVirus-2009.html