McAfee Antivirus Software protects your computer against spyware and hackers. It also offers firewall protection against viruses that can disrupt your network. The antivirus software package can be purchased online or at a computer or an electronics store. Read the steps below to buy McAfee Antivirus software.

Step 1:
Decide whether to purchase McAfee Antivirus software for your home or for your office. You may want to buy firewall protection for more than one computer, or you want a package that also includes wireless Internet protection.

Step 2:
Visit an electronics store to buy McAfee. Shop for the different versions of McAfee. Determine your protection needs. You may want to protect your children online, or you want a guard against identity theft.

Step 3:
Look for McAfee Antivirus software online at McAfee's website or at Amazon. Buy the product and have it shipped to your address, or download the software on your computer.

Step 4:
Download McAfee Antivirus software for free with the purchase of an Internet subscription service. Visit the "Security Center" link, then log in with your email address and password, or create an account. Wait for your order to process, and print your receipt for your records. Review the instructions, then download McAfee to your computer.