Welcome to our comprehensive guide on how to install Nessus on Windows. Nessus is a renowned vulnerability scanner that can significantly enhance your network security. In this tutorial, we’ll guide you through the installation process, ensuring you have all the knowledge you need to get Nessus up and running on your Windows machine.

What is Nessus?

Nessus is a popular vulnerability scanner developed by Tenable Network Security. It is designed to automate the process of testing networked systems for known vulnerabilities, providing network administrators with the information they need to secure their systems effectively.


Before we dive into the installation process, ensure you have the following:

  • A Windows machine (Windows 7 or later)
  • Administrator access
  • Stable internet connection

Step 1: Download Nessus

The first step is to download the Nessus installer. Visit the official Nessus download page, select the version compatible with Windows, and click ‘Download’.

Step 2: Run the Installer

After the download is complete, locate the installer file (typically in your Downloads folder) and double-click it to run the installer. If prompted for administrator access, enter your administrator password to proceed.

Step 3: Follow the Installation Wizard

The Nessus installation wizard will guide you through the rest of the process. Follow the prompts, accept the license agreement, and choose your preferred installation location. The installation process may take a few minutes, so be patient.

Step 4: Configure Nessus

After the installation is complete, you’ll need to configure Nessus. This involves creating a new user account, setting up a password, and defining your scan settings. Ensure you choose a strong, unique password for your user account to maintain security.

Step 5: Start Using Nessus

Well done! You’ve successfully installed Nessus on your Windows machine. You can now start using Nessus to scan your network for vulnerabilities. Remember to regularly update Nessus to protect against the latest threats.

Understanding Nessus Scans

Nessus scans are a crucial part of maintaining network security. They help identify potential vulnerabilities in your network that could be exploited by attackers. Nessus offers several types of scans, including host-based, network-based, and wireless scans, each designed to identify specific types of vulnerabilities.

Frequently Asked Questions (FAQs)

Here are some frequently asked questions about installing Nessus on Windows:

1. Can I install Nessus on other operating systems?

Yes, Nessus is compatible with various operating systems, including Linux and macOS. You can download the appropriate installer from the Nessus download page.

2. What should I do if the installation fails?

If the installation fails, try restarting your computer and running the installer again. If the problem persists, contact Nessus support for assistance.

3. How often should I update Nessus?

It’s recommended to update Nessus regularly to ensure you’re protected against the latest threats. You can check for updates from within the Nessus interface.

4. Can I use Nessus for free?

Nessus offers a free version called Nessus Essentials. However, for more advanced features, you might need to purchase a license.

5. How can I learn more about using Nessus?

Tenable, the company that develops Nessus, offers a range of resources to help users get the most out of their product. These include user guides, tutorials, and a community forum where you can ask questions and share tips with other Nessus users.


We hope this guide has been helpful in guiding you through the process of installing Nessus on Windows. With Nessus installed, you’re well on your way to securing your network. Happy scanning!