Installing an Antivirus: How Does It Work?

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With the democratization of the Internet, the appearance of new technologies and new means of file transfers (USB key, Bluetooth, e-mail, etc.), it is now very easy to contract computer viruses on your computer.

Depending on their type and category, these can slow down your computer or even prevent it from working.

Hence the importance of installing an antivirus to prevent or fight effectively against this type of threat.

Installing an antivirus is not the prerogative of IT specialists alone and does not take much time. However, it is necessary to follow a very precise procedure in order to properly install the software and ensure 100% efficiency!

Installing An Antivirus, How Does it work


Steps to Install an Antivirus

Before installing an antivirus, you must first have one. You can therefore buy or download them online.

Check out our ranking of the best antiviruses to make your choice. Then you can start the installation procedure.

Step 1: Prepare Your Computer Before Installing an Antivirus

First, check that your computer does not have a former antivirus installed.

  •  If so, it will have to be uninstalled. To do this, go to the " Control Panel " section, then to the " Programs " section and click " Uninstall a program" .

Select the program to uninstall (here it is the antivirus already installed) then right click and click Uninstall.

A dialog box will open asking you to confirm. Accept the uninstallation confirmation and follow the wizard that will guide you through the uninstallation process.

Once this is complete, restart your workstation so that the complete removal of the antivirus and its files is effective.

  •  If not, go to the next step.

Step 2: Disconnect From the Internet

Unplug your network cable from the computer, if you are connecting from the cable. Otherwise, disconnect from your Wi-Fi connection to avoid infection while installing your antivirus.

To do this, click on the Wi-Fi icon (at the bottom, at the far right of your screen), select the network to which you are connected and then click on “ Disconnect ”.

Here you are, your computer is now devoid of antivirus and disconnected from any internet network in order to avoid a possible online infection during your installation.

You can now proceed to install your antivirus.

Step 3: Install And Update Your Antivirus

To do this, insert your installation medium (CD or USB key) and launch the installation program by double-clicking on the executable file.

If you downloaded your antivirus online, preferably from the publisher's website, do the same to launch the installer.

Once the program is launched, accept the terms of the contract and follow the instructions of the installation wizard.

In this phase, pay close attention to the choices offered. Some programs, usually free ones downloaded online, subtly offer to install additional programs on your machine.

So read the options checked before clicking on " Next ". Once the installation is complete, you have the choice between 2 options:

  • Either directly launch a scan of your computer and perform the necessary actions requested according to the files detected.
  • Either reconnect your network cable or reconnect to your Wi-Fi network to register your antivirus online with its license key. You can then update it regularly. After that restart your PC and run a scan. Depending on the types of threats detected, the antivirus will offer you to either delete them or quarantine them.

Your antivirus is now properly installed and your computer cleaned and well protected.

Above all, be sure to regularly update your antivirus so that it can effectively fight against viruses, malware and other computer worms that are created every day!

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