Skip to main content
    Step 1 of 4
    Buying Guides
    Beginner
    3 min read 4 stepsMay 3, 2026Verified May 2026

    Best Antivirus Software for Windows PCs for Seniors

    Do you really need antivirus software in 2026? What's free vs. paid? Here's what actually protects you without overcomplicating things.

    At a Glance

    Category
    Buying Guides
    Difficulty
    Beginner
    Read Time
    3 min read
    Steps
    4
    Topics covered
    antivirus
    Windows
    security
    malware

    In this guide (4 steps):

    1. 1.Check that Windows Defender is on
    2. 2.Run a Windows Defender scan
    3. 3.Download and run a free Malwarebytes scan
    4. 4.Decide if paid antivirus makes sense
    1

    Check that Windows Defender is on

    ~16s
    Click the Windows Start button (four squares, bottom-left of screen). Type "Windows Security" and press Enter. Click "Virus & threat protection." Under the "Virus & threat protection settings" heading, confirm "Real-time protection" is turned On. If it says Off, click the toggle to turn it on.
    2

    Run a Windows Defender scan

    ~16s
    In the same "Virus & threat protection" screen, click "Quick scan." This takes a few minutes and checks the most common locations where malware hides. For a thorough check, click "Scan options" and choose "Full scan" — this takes longer (30-60 minutes) but checks everything.
    3

    Download and run a free Malwarebytes scan

    ~24s
    Go to malwarebytes.com and download the free version. Install it and run a scan. Malwarebytes looks for things that traditional antivirus sometimes misses. If it finds anything, follow the prompts to remove it. You can keep the free version installed for occasional use.

    Warning

    Only download Malwarebytes from malwarebytes.com — not from a pop-up ad or a link in an email. Third-party sources may distribute fake security software that is itself malware.

    4

    Decide if paid antivirus makes sense

    ~15s
    If you use your computer primarily for email, banking, and browsing, Windows Defender plus safe habits (not clicking suspicious links) is genuinely enough. Paid antivirus adds extra layers but is not essential if you already practice basic online safety.

    You Did It!

    You've finished reading: Best Antivirus Software for Windows PCs for Seniors

    How well did this guide stick with you?

    Need more help? Book a TekSure tech

    Antivirus software finds and removes harmful programs. These are the viruses, malware, and spyware that can damage your computer, steal your information, or take control of it.

    There is good news for Windows users. Windows 10 and 11 come with a free antivirus program already built in. It is called Windows Defender, or Microsoft Defender Antivirus. Independent testing labs rate it as effective against the large majority of threats. For most people at home, Windows Defender plus careful browsing habits is enough protection.

    Windows Defender (built-in, free):

    If you have Windows 10 or 11 and have not installed separate antivirus software, Windows Defender is already protecting you right now. Make sure it is on: go to Settings → Windows Security → Virus & Threat Protection. It should say "No action needed."

    Malwarebytes (free and premium):

    Malwarebytes is good at finding harmful software that Windows Defender misses. The free version lets you run a scan whenever you are worried. The paid version, about $40 a year, watches your computer all the time. Running the free scan once a month is a sensible habit, even if you already use Windows Defender.

    Bitdefender Total Security (~$40/year) — Best paid antivirus:

    If you want a full paid security suite with extra features (VPN, parental controls, password manager), Bitdefender Total Security consistently earns top marks from independent testers. It is lightweight (does not slow your computer) and protects multiple devices.

    What NOT to buy:

    Avoid purchasing security software from a pop-up window or from someone who called your phone claiming your computer has a virus. Legitimate antivirus software is purchased from the company's actual website or a trusted retailer — never through an unsolicited call.

    (Source: AV-Test Institute, av-test.org — independent antivirus testing)

    Rate this guide

    How helpful was this guide?

    antivirus
    Windows
    security
    malware

    ← Previous

    Best Password Managers in 2026: Bitwarden, LastPass, 1Password

    Next →

    Best External Hard Drives for Photo Backup

    Still stuck? Let a pro handle it.

    A real person can walk you through this over the phone, anywhere in the US. If we can't fix it, you don't pay.

    Book a Verified Tech How It Works

    Learn more from official sources

    Related Guides

    How to Read Tech Specs Before Buying a Device

    Tech spec sheets are full of numbers and jargon. This guide explains the five specs that matter for everyday use so you can buy with confidence.

    5 min read

    TV Buying Guide — What to Know Before You Buy

    Shopping for a new TV is confusing with all the acronyms and numbers. This guide explains what actually matters — size, panel type, resolution.

    5 min read

    How to Choose the Right Printer for Your Home

    Inkjet or laser? All-in-one or basic? This guide explains what home printers cost to own and which type fits the printing you actually do.

    5 min read