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There are few important things which a computer virus cannot do. They are:
                 •  It cannot infect files on CD-ROM as they are write-protected.
                 •  It cannot infect computer hardware such as monitors, keyboard, mouse, printer etc.

                 You can protect your computer from virus by following the given precautions:
                 •  Install and use anti-virus software.
                 •  Keep anti-virus software updated so that it can scan and remove new viruses.
                 •  Scan all the files that you download from the Internet.

                 •  Do not open e-mails from an unknown person/sender.
                 •  Don’t allow any untrustworthy person to use your system.
                 •  Never use unknown pen drive/CD on your computer.
                 •  Never click on the unknown windows that pop-up when you are surfing the Internet.



                              Brainy Fact


                      The Creeper virus is the first computer virus  designed by Bob Thomas in 1971 as he conducted an
                      experiment to develop a self-replicated program.

                 Scanning and Cleaning Virus


                 Scanning and cleaning a virus prevents any viruses from entering and will also clean any viruses that may have
                 entered your computer system unknowingly. Install Anti-virus or anti malware software to keep your system safe.
                 Anti-virus software is a program designed to prevent,detect and remove malicious programs from the computer.
                 After you install the anti-virus software runs automatically in the background to provide real-time protection
                 against virus attacks. You should also  run full system scans periodically. Some examples of anti-virus software are
                 McAfee Virus Scan, Norton Anti-Virus, Microsoft Security essentials, Quick Heal etc.
                 Windows Defender Firewall is an antivirus software that's included in the Windows operating system that protects your
                 device from viruses and other malware and threats. To enable Microsoft Windows Defender Firewall on Windows 11:

                 Step 1   Select Start and open Settings.
                 Step 2   Go to Privacy & Security, then Windows Security--> Firewall & network protection.

                 Step 3   Choose a network profile: Domain, Private, or Public.

                 Step 4   Switch the Microsoft Defender Firewall setting to On.

                 If you need to disable it, switch the setting to Off. Disabling the firewall can increase vulnerability, so it's better to
                 allow specific apps through the firewall rather than turning it off completely.

                 Some of the commonly used antivirus software are given below:










                       Quick Heal            Avira               McAfee              Norton                 AVG



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