1. Determine what type of antivirus software you need for your computer. For example, do you need protection from viruses, phishing scams, or other malicious activities?
2. Research the various antivirus programs available. Consider the price, features, and level of protection each software offers.
3. Decide which antivirus program is best suited to your needs and budget. Make sure it is compatible with your operating system and hardware configuration.
4. Download the desired antivirus program onto your computer, or purchase a physical copy.
5. Install the software following the instructions provided. Allow the program to update itself as necessary.
6. Run a scan of your system to detect and remove any viruses or other malicious activities.
7. Activate your subscription, if applicable.
8. Set up regular scans to ensure your computer is protected against future threats.