Free network security scanner software for windows

GFI LANguard Security Scanner 9 is a very powerful yet toltally free vulnerability management solution used by over 20,000 customers. GFI LANguard scans your network and ports to detect, assess and rectify security vulnerabilities on your network, with minimal administrative effort. It also provides the tools to remediate vulnerabilities and install missing patches on your network. This solution gives you a complete picture of your network set-up and helps you to maintain a secure network state faster and more effectively.

Freeware version is available, for up to 5 IP addresses. GFI LANguard performs network scans using vulnerability check databases based on OVAL and SANS Top 20, providing over 15,000 vulnerability assessments when your network, including any virtual environment, is scanned.

GFI LANguard gives you the capability to perform multi-platform scans (Windows, Mac OS, Linux) across all environments and analyze your networks security health. You have all the functionality and tools needed to effectively install and manage patches on all machines across different Microsoft operating systems and products in 38 languages. Apart from automatically downloading missing Microsoft security updates, you can also deploy missing Microsoft patches or service-packs.

GFI LANguards auditing function retrieves hardware information on memory, processors, display adapters, storage devices, motherboard details, printers, etc. Using baseline comparisons you can check whether any hardware was added or removed since the last scan, as well as get reports on unauthorized software installations. GFI LANguard can provide alerts or automatically uninstall these unauthorized applications.

Requirements: At least 32 MB of RAM