To remove Microsoft Baseline Security Analyzer (MBSA) Use the Add/Remove Programs feature in the Windows Settings system.
Go to the Search programs and files box in the Start menu (Windows 7) or on the Taskbar (Windows 8 and 10) and type uninstall a program. In Windows 7, you will see an Uninstall a program option, and in Windows 8 and 10, select Apps and Features.
Scroll through the list of presented programs to find MBSA. Click on that entry.
Click on the Uninstall button.