Step 1: Download the agent installer
Head to the Nessus agent download page:
Search for NessusAgent-7.4.1-x64.msi and download it keep a note where you've saved it. (If you're running an older version of Windows, download NessusAgent-7.4.1-Win32.msi)
Step 2: Install, configure and link the agent
To configure each device for scanning you'll need the following three pieces of information:
Full Path to Installer:
This is where you saved the installer. For example, "C:\Users\[your name]\downloads\NessusAgent-7.4.1-x64.msi"
A unique identifier that makes sure your device shows up in the right place - we'll provide this to you.
To identify your devices as targets for vulnerability scanning in our portal, you'll need to name them according to a specific convention. We provide you with a unique client prefix, which needs to prepend what you want to call your device. So if your device is called paul-laptop and your unique client prefix is DQEGBQUAAAc, the device name should be DQEGBQUAAAc_paul-laptop.
Once you have the above information ready, open a Command Prompt (cmd.exe) as Administrator and run the following command - modifying the placeholders (everything inside [ ] brackets) accordingly:
msiexec /i [1.Full Path to Installer] NESSUS_SERVER="cloud.tenable.com:443" NESSUS_KEY=[2.Unique Key] NESSUS_NAME=[3.Device Name] /qn
If you're on Windows 7 x64 Enterprise, Windows 8 Enterprise, and Windows Server 2012, please now reboot your machine.