Windows computer security setup with antivirus protection and performance optimisation for Local Nerd IT support

3 May 2026

Stop Using Norton and McAfee - Here's a Better Antivirus for Windows

Still using Norton or McAfee? Learn why they slow your computer down and why Bitdefender is a better antivirus choice for Windows.

If you're still using Norton or McAfee, you're not alone - but you might be making your computer slower and harder to use than it needs to be.

We see this all the time across homes and small businesses in Sydney.

The good news is there's a better option that's lighter, more effective, and easier to live with.

What's Wrong with Norton and McAfee?

1. They Slow Down Your Computer

These programs are known for being resource-heavy, especially on older or mid-range machines.

2. Constant Popups and Notifications

Upsells, warnings, and alerts can interrupt your work and create confusion.

3. Expensive Renewals

Subscription pricing often increases over time, sometimes without clear notice.

4. Overcomplicated Features

Most users only need basic protection, but these tools add unnecessary complexity.

What Makes Bitdefender a Better Choice?

At Local Nerd, Bitdefender is one of the antivirus solutions we recommend most often.

1. Strong Protection

Bitdefender consistently ranks highly for detecting viruses, malware, and online threats.

2. Lightweight Performance

It runs quietly in the background without slowing your system down.

3. Simple to Use

Clean interface, fewer interruptions, and easy setup.

4. Good Value

Reliable protection without the aggressive upselling.

Do You Even Need Antivirus on Windows?

Windows includes built-in security (Microsoft Defender), which is better than it used to be.

However, for many users - especially families or small businesses - a dedicated antivirus adds an extra layer of protection.

This is particularly useful if you:

  • Click links from emails or messages
  • Download files regularly
  • Share your computer with others
  • Run a small business

Should You Switch?

If your computer feels slow, cluttered, or constantly interrupted by antivirus popups - switching can make a noticeable difference.

We often see computers perform significantly better after removing Norton or McAfee and replacing them with a lighter solution.

How Local Nerd Can Help

Switching antivirus properly isn't just about installing new software - the old one needs to be removed cleanly to avoid conflicts.

  • Remove Norton or McAfee completely
  • Install and configure Bitdefender
  • Check your system for leftover issues
  • Optimise overall performance

Try Bitdefender

If you want a better antivirus experience, you can check it out here:

View Bitdefender options

(Affiliate link - helps support Local Nerd at no extra cost to you)

Get It Set Up Properly

If you'd rather have everything handled for you, Local Nerd can take care of the setup and make sure your system is running smoothly.

Book Local Nerd support


People Also Ask

Is Norton or McAfee bad?

They still provide protection, but many users find them slow, intrusive, and expensive compared to modern alternatives.

Is Bitdefender better than Windows Defender?

Bitdefender offers stronger protection and more features, especially for users who want extra security.

Will antivirus slow my computer down?

Some antivirus software does, but modern solutions like Bitdefender are designed to be lightweight.

Do I need antivirus in Australia?

Yes - online threats exist everywhere, and protection is recommended for both home users and businesses.

Can Local Nerd install antivirus for me?

Yes. Local Nerd can install, configure, and optimise antivirus software for your needs.

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