Before I begin to tell you about my reasons for ditching the antivirus, you should know that this reflects my own experiences and is not a one-size-fits-all recommendation. Every user’s threat model is different, so always evaluate your own security needs before making any changes. For me, the antivirus became more of a resource-consuming app that served no purpose, and here’s why.

5 Cyber hygiene and security awareness can beat any antivirus

It all comes down to how you’re using your PC

One of the most transformative outcomes of moving away from a traditional antivirus solution has been the forced, and ultimately rewarding, shift toward cultivating strong cyber hygiene practices. In other words, instead of relying solely on software to catch every potential threat, I took personal responsibility for ensuring safe browsing, careful file downloads, and an overall more cautious online behavior pattern.

Once I learned a thing or two about encryption, multi-factor authentication, sandboxing, and other proactive measures that protect my digital life, I realized I didn’t need any cyber policeman to catch any threat. Nowadays, many, if not all, browsers have built-in security and filtering systems, and some of them, such as Opera or Brave, even have built-in VPNs to conceal your identity online. The bottom line is that self-discipline is the mother of cybersecurity for your own system.

4 Microsoft Defender has come a long way

It does a great job for basic defence

Windows 11 comes with Microsoft Defender Antivirus built right into the operating system, a solution that has evolved considerably over the years. Today, Defender delivers real-time protection, cloud-powered threat intelligence, and frequent updates that keep pace with emerging malware.

For me, the integration of Defender into the core Windows environment means it not only runs seamlessly but also adapts to system-level cues that third-party antiviruses sometimes miss. It’s still not the best when it comes to resource consumption, but it’s regularly updated and maintained by Microsoft to keep track of all the emerging threats.

Lately, I also discovered that it’s less intrusive, and I haven’t seen any software conflicts caused by Defender in years, a thing that bugged me years ago. It may not be as sophisticated as some of the discrete antiviruses, but it still does a great job if you also follow some basic cyber hygiene rules.

3 Cost savings and better resource allocation

Being careful and aware doesn’t cost a dime

Many high-end antivirus software packages come with subscription fees that, over time, can add up to a significant expense. That’s when I tried some free versions of antiviruses, which I won’t even mention. They were intrusive, constantly popping up with alarming false messages pushing me for an upgrade, and essentially, they lacked crucial security features that I already had from Microsoft Defender.

Beyond the direct monetary benefits, there is peace of mind knowing that I’m not locked into a vendor’s ecosystem or forced to pay again for incremental features that may not be utilized fully. If you really think you need such a tool, you can try some open-source antiviruses that can do a great job without nagging you with ads and providing essential security features.

2 Improved system performance

A stone has been lifted

One of the most noticeable improvements after ditching most third-party antivirus programs was a substantial boost in system performance. Antivirus scanners are notorious for hogging system resources, and for some reasonable reasons. They perform background scans, real-time monitoring, and periodic deep system checks that can lead to slower boot times and degraded responsiveness during intensive tasks.

On my Windows 11 system, I found that disabling these separate antivirus tools freed up CPU cycles and memory resources, allowing the operating system to allocate resources more efficiently. Even launching apps or simple web browsing became noticeably snappier. You probably wouldn’t notice the change on a powerful configuration, but for my old laptop, removing the antivirus was a breath of fresh air.

1 I found other ways to secure my data

Regular backups and file encryption can do more than an antivirus

Over time, I realized that many security features I valued weren’t the exclusive domain of antivirus software. In a way, I found it more useful to change the security paradigm from keeping everyone out to protecting valuable data.

So, the first thing I do is to back up my sensitive data to safeguard it against any potential loss. The old-fashioned way to store them on an external drive works perfectly for me, although there are many open-source backup solutions you can use as well.

Another layer of security is encrypting my data, and I’m using VeraCrypt to keep it in a hidden volume. On top of that, I added a password manager to create strong passwords and keep all my accounts safe.

I don’t really need an antivirus anymore

While these reasons have worked beautifully in my case, I must emphasize that every user’s context is different. The built-in Windows 11 security suite, combined with other security layers, has provided all the protection I need without the extra noise and resource overhead of a third-party antivirus. However, if your threat model or habits differ, an antivirus might still be the best choice for you.