You first need to learn about the various free antivirus software available on the internet for download. Use the Google search engine for this purpose. Type “top free antivirus software” in the search bar and click “Search.” A number of results will be display on the screen. Open the results that seem more appropriate to you. The inclusion of the word “top” in your search helps to ensure that only the most popular antivirus software is displayed in the results instead of an antivirus software that may be free, but hardly effective.
Go through the websites you opened in the previous step to get an idea about the different free antivirus software. You will be able to learn about their features, their spectrum and the operating software that they are compatible with. Some examples of popular free antivirus software that you may come across are Avast! free antivirus, Microsoft Security Essentials, Panda Cloud Antivirus, AVG Anti-Virus Free Edition, and Immunet Protect Free.
After you have gone through the descriptions of the different antivirus software, select the software that meets your requirement.
Visit that free antivirus software’s website by either clicking its name or using Google’s search engine for the purpose.
Once you reach the website, look for the download section. In some cases, you will not have to navigate to the download section as the website will have the download button right on the main page.
Select the antivirus software that you wish to download in the download section and select the operating system running on your Windows. Click the “Download” button to start downloading the software to your PC.
Wait for the download to finish. Once it is complete, look for the folder where the install package was saved. Double-click the file to start the installation.