Installing an antivirus program is a good first step . But you're not done yet! The initial setup enables the antivirus scanning engine—the code that checks files for possible viruses . The most important part of the package is the database of virus definitions (sometimes called the signature file). After installing an antivirus package on a new computer, update it to the latest definitions immediately. Then configure the program to enable these features:
• Install updates to program files and virus definitions using the program developer's recommended schedule, at least daily
• Scan each file that you access in any way. This feature is typically called real-time scanning, virus monitoring, or something similar. Don't confuse this type of scanning with scheduled scans, which periodically scan the files stored on your computer to find infected files .
• Scan e-mail attachments and block access to infected files.
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