Prevention is important because hackers’ tricks are getting nastier and nastier. Only a secure Windows offers sufficient protection against these dangers. With the free tool Nessus from the Windows Security Toolbox, which I present to you in this article, you can put the security of your Windows through its paces. Even if you regularly install your updates and believe that you have taken all the right security measures: You’ll be surprised at the gaps this program still uncovers. Try it ...
Security check for Windows: Use the free “Nessus” tool to check your system for vulnerabilities and security gaps
Think your Windows PC is secure just because you install updates? Nessus Essentials, free for home users, scans for hidden vulnerabilities you'd never spot alone. It flags risks like missing patches, weak passwords and open ports, then sorts them by severity – critical, high, medium and beyond. Each finding comes with a clear explanation and suggested fix, so you know exactly what to tackle. A professional-grade security check that's surprisingly simple to run.
6 Min. reading time
13 May 2026
