Microsoft Baseline Security Analyzer is described as 'A vulnerability scanner for the Windows WorkStations et Servers !'. There are six alternatives to Microsoft Baseline Security Analyzer for a variety of platforms, including Linux, Windows, Mac, Online / Web-based and Android. The best alternative is Nessus. It's not free, so if you're looking for a free alternative, you could try OpenVAS or Tsunami. Other great apps like Microsoft Baseline Security Analyzer are Nexpose (Paid), Core Impact Pro (Paid) and Mageni (Freemium).
The Nessus vulnerability scanner is the world-leader in active scanners, featuring high-speed discovery, configuration auditing, asset profiling, sensitive data discovery and vulnerability analysis of your security posture.