All it takes is one worm or virus to wreak havoc and cause major destruction to a system or network.
In order for anti virus software to provide maximum protection, it should be able to detect all known viruses, including the latest threats.
From their own computer, users can also perform the task of updating virus definition files.
By default they download files from their Ivanti core server.
Sometimes Avast may also block safe programs or websites because of the out-dated virus definitions. Major updates to Avast virus definitions are usually released daily, while the smaller ones are delivered constantly throughout the day via the streaming updates.
By default all Avast antivirus solutions (Free Antivirus, Pro Antivirus, Internet Security and Premier) are downloading the virus definitions updates automatically when your computer has access to the Internet.
However, if they need to be able to download the latest virus definition updates while they're not connected to the network (for example, while traveling or using a laptop), you can provide the option of letting users download files directly from the Whenever virus definition files are updated on managed devices, a mini-scan of memory processes runs on the device.
To import the file into the Avira program, go to the Update menu -Bitdefender Weekly Updates Bitdefender updates its offline definition files once a week on a Friday so they could be a nearly week out of date depending what day you download them.
In the virus defintition database, each defintion, or pattern of binary code is unique to each variant of a virus.
This enables anti virus software to effectively detect viruses upon the discovery of any of the code included in the virus defintion database.
So it is extremely important to keep it updated to the latest version.
Otherwise your computer can potentially get infected and antivirus won’t help you.